Summary:
Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS.
Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE.
This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs.
Update: August 13, 2024
Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562.
Details:
A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn.
The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS.
Microsoft is developing a security... See more at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21302
Metrics
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Microsoft |
|
Configuration 1 [-]
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No data.
References
History
Tue, 17 Sep 2024 23:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security... See more at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21302 |
| Metrics |
cvssV3_1
|
cvssV3_1
|
Thu, 12 Sep 2024 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft windows 10 21h2
Microsoft windows 10 22h2 Microsoft windows 11 21h2 Microsoft windows 11 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows Server 2022 23h2 |
|
| Weaknesses | NVD-CWE-Other | |
| CPEs | cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Microsoft windows 10 21h2
Microsoft windows 10 22h2 Microsoft windows 11 21h2 Microsoft windows 11 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows Server 2022 23h2 |
Fri, 16 Aug 2024 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, refer to KB5042562: Guidance for blocking rollback of virtualization-based security related... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this... |
Thu, 15 Aug 2024 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to security updates once available. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, refer to KB5042562: Guidance for blocking rollback of virtualization-based security related... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, refer to KB5042562: Guidance for blocking rollback of virtualization-based security related... |
Wed, 14 Aug 2024 04:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, refer to KB5042562: Guidance for blocking rollback of virtualization-based security related... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to security updates once available. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, refer to KB5042562: Guidance for blocking rollback of virtualization-based security related... |
Tue, 13 Aug 2024 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are strongly encouraged to implement this opt-in mitigation, which is summarized in KB5042562: Guidance for blocking rollback of virtualization-based security related updates. Caution: There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, reference KB5042562: Guidance for blocking rollback of virtualization-based security related updates. Caution: There are risks... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, refer to KB5042562: Guidance for blocking rollback of virtualization-based security related... |
Tue, 13 Aug 2024 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS) including a subset of Azure Virtual Machine SKUS; enabling an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn.. Microsoft is developing a security update to mitigate this vulnerability, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022 , and a subset of Azure Virtual Machines (VM) SKUs with a Windows based guestOS supporting VBS. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. See Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center. Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 07th, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section of this CVE to protect their systems. Recommended Actions: The following recommendations do not mitigate the vulnerability but can be used to reduce the risk of exploitation until the security update is available. Configure “Audit Object Access” settings to monitor attempts to access files, such as handle creation, read / write operations, or modifications to security descriptors. Audit File System - Windows 10 | Microsoft Learn Apply a basic audit policy on a file or folder - Windows 10 | Microsoft Learn Auditing sensitive privileges used to identify access, modification, or replacement of VBS related files could help indicacte attempts to exploit this vulnerability. Audit Sensitive Privilege Use - Windows 10 | Microsoft Learn Protect your Azure tenant by investigating administrators and users flagged for risky sign-ins and rotating their credentials. Investigate risk Microsoft Entra ID Protection - Microsoft Entra ID Protection | Microsoft Learn Enabling Multi-Factor Authentication can also help alleviate concerns about compromised accounts or exposure. Enforce multifactor... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are strongly encouraged to implement this opt-in mitigation, which is summarized in KB5042562: Guidance for blocking rollback of virtualization-based security related updates. Caution: There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. For more information see Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 7, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section to protect their systems. Recommended Actions: Microsoft has released an opt-in mitigation available as an interim solution to help protect customers concerned about this vulnerability until the final mitigation is available in a security update. For Windows 10 1809 and later, Windows 11 version 21H2 and later, and Windows Server 2019 and later, administrators can deploy a Microsoft-signed revocation policy (SkuSiPolicy.p7b) to block vulnerable, unpatched versions of VBS system files from being loaded by the operating system. For more information, reference KB5042562: Guidance for blocking rollback of virtualization-based security related updates. Caution: There are risks... |
| CPEs | cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:* |
cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.20710:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1507:10.0.10240.20710:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.7259:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1607:10.0.14393.7259:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.6189:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.6189:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:10.0.17763.6189:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_21H2:10.0.19044.4780:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21H2:10.0.19044.4780:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21H2:10.0.19044.4780:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22H2:10.0.19045.4780:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22H2:10.0.19045.4780:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22H2:10.0.19045.4780:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.3147:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_21H2:10.0.22000.3147:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_22H2:10.0.22621.4037:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_22H2:10.0.22621.4037:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_23H2:10.0.22631.4037:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23H2:10.0.22631.4037:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24H2:10.0.26100.1457:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_24H2:10.0.26100.1457:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2016:10.0.14393.7259:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:10.0.17763.6189:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:10.0.20348.2655:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_23h2:10.0.25398.1085:*:*:*:*:*:*:* |
Fri, 09 Aug 2024 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 08 Aug 2024 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS) including a subset of Azure Virtual Machine SKUS; enabling an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn.. Microsoft is developing a security update to mitigate this vulnerability, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022 , and a subset of Azure Virtual Machines (VM) SKUs with a Windows based guestOS supporting VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. See Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center. Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 07th, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section of this CVE to protect their systems. Recommended Actions: The following recommendations do not mitigate the vulnerability but can be used to reduce the risk of exploitation until the security update is available. Configure “Audit Object Access” settings to monitor attempts to access files, such as handle creation, read / write operations, or modifications to security descriptors. Audit File System - Windows 10 | Microsoft Learn Apply a basic audit policy on a file or folder - Windows 10 | Microsoft Learn Auditing sensitive privileges used to identify access, modification, or replacement of VBS related files could help indicacte attempts to exploit this vulnerability. Audit Sensitive Privilege Use - Windows 10 | Microsoft Learn Protect your Azure tenant by investigating administrators and users flagged for risky sign-ins and rotating their credentials. Investigate risk Microsoft Entra ID Protection - Microsoft Entra ID Protection | Microsoft Learn Enabling Multi-Factor Authentication can also help alleviate concerns about compromised accounts or exposure. Enforce multifactor... | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS) including a subset of Azure Virtual Machine SKUS; enabling an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn.. Microsoft is developing a security update to mitigate this vulnerability, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022 , and a subset of Azure Virtual Machines (VM) SKUs with a Windows based guestOS supporting VBS. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. See Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center. Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 07th, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section of this CVE to protect their systems. Recommended Actions: The following recommendations do not mitigate the vulnerability but can be used to reduce the risk of exploitation until the security update is available. Configure “Audit Object Access” settings to monitor attempts to access files, such as handle creation, read / write operations, or modifications to security descriptors. Audit File System - Windows 10 | Microsoft Learn Apply a basic audit policy on a file or folder - Windows 10 | Microsoft Learn Auditing sensitive privileges used to identify access, modification, or replacement of VBS related files could help indicacte attempts to exploit this vulnerability. Audit Sensitive Privilege Use - Windows 10 | Microsoft Learn Protect your Azure tenant by investigating administrators and users flagged for risky sign-ins and rotating their credentials. Investigate risk Microsoft Entra ID Protection - Microsoft Entra ID Protection | Microsoft Learn Enabling Multi-Factor Authentication can also help alleviate concerns about compromised accounts or exposure. Enforce multifactor... |
Thu, 08 Aug 2024 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS) including a subset of Azure Virtual Machine SKUS; enabling an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS) including a subset of Azure Virtual Machine SKUS; enabling an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn.. Microsoft is developing a security update to mitigate this vulnerability, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, Windows Server 2019, Windows Server 2022 , and a subset of Azure Virtual Machines (VM) SKUs with a Windows based guestOS supporting VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security update that will revoke outdated, unpatched VBS system files to mitigate this vulnerability, but it is not yet available. Due to the complexity of blocking such a large quantity of files, rigorous testing is required to avoid integration failures or regressions. This CVE will be updated with new information and links to the security updates once available. We highly encourage customers subscribe to Security Update Guide notifications to be alerted of updates. See Microsoft Technical Security Notifications and Security Update Guide Notification System News: Create your profile now – Microsoft Security Response Center. Microsoft is not aware of any attempts to exploit this vulnerability. However, a public presentation regarding this vulnerability was hosted at BlackHat on August 07th, 2024. The presentation was appropriately coordinated with Microsoft but may change the threat landscape. Customers concerned with these risks should reference the guidance provided in the Recommended Actions section of this CVE to protect their systems. Recommended Actions: The following recommendations do not mitigate the vulnerability but can be used to reduce the risk of exploitation until the security update is available. Configure “Audit Object Access” settings to monitor attempts to access files, such as handle creation, read / write operations, or modifications to security descriptors. Audit File System - Windows 10 | Microsoft Learn Apply a basic audit policy on a file or folder - Windows 10 | Microsoft Learn Auditing sensitive privileges used to identify access, modification, or replacement of VBS related files could help indicacte attempts to exploit this vulnerability. Audit Sensitive Privilege Use - Windows 10 | Microsoft Learn Protect your Azure tenant by investigating administrators and users flagged for risky sign-ins and rotating their credentials. Investigate risk Microsoft Entra ID Protection - Microsoft Entra ID Protection | Microsoft Learn Enabling Multi-Factor Authentication can also help alleviate concerns about compromised accounts or exposure. Enforce multifactor... |
Thu, 08 Aug 2024 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS) including a subset of Azure Virtual Machine SKUS; enabling an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. | |
| Title | Windows Secure Kernel Mode Elevation of Privilege Vulnerability | |
| First Time appeared |
Microsoft
Microsoft windows 10 1507 Microsoft windows 10 1607 Microsoft windows 10 1809 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 21h2 Microsoft windows 11 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows Server 2016 Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 23h2 |
|
| Weaknesses | CWE-284 | |
| CPEs | cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_21H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_22H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Microsoft
Microsoft windows 10 1507 Microsoft windows 10 1607 Microsoft windows 10 1809 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 21h2 Microsoft windows 11 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows Server 2016 Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 23h2 |
|
| References |
| |
| Metrics |
cvssV3_1
|
MITRE
Status: PUBLISHED
Assigner: microsoft
Published: 2024-08-08T01:59:30.725Z
Updated: 2024-09-19T21:52:42.390Z
Reserved: 2023-12-08T22:45:19.365Z
Link: CVE-2024-21302
Vulnrichment
Updated: 2024-08-09T12:38:06.193Z
NVD
Status : Modified
Published: 2024-08-08T02:15:37.827
Modified: 2024-09-18T00:15:03.243
Link: CVE-2024-21302
Redhat
No data.