Description
An issue was discovered in Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver through 2.2.100.1 (aka AGRSM64.sys). There is Local Privilege Escalation to SYSTEM via a Stack Overflow in RTLCopyMemory (IOCTL 0x1b2150). An attacker can exploit this to elevate privileges from a medium-integrity process to SYSTEM. This can also be used to bypass kernel-level protections such as AV or PPL, because exploit code runs with high-integrity privileges and can be used in coordinated BYOVD (bring your own vulnerable driver) ransomware campaigns.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2023-35425 | An issue was discovered in Broadcom) LSI PCI-SV92EX Soft Modem Kernel Driver through 2.2.100.1 (aka AGRSM64.sys). There is Local Privilege Escalation to SYSTEM via a Stack Overflow in RTLCopyMemory (IOCTL 0x1b2150). An attacker can exploit this to elevate privileges from a medium-integrity process to SYSTEM. This can also be used to bypass kernel-level protections such as AV or PPL, because exploit code runs with high-integrity privileges and can be used in coordinated BYOVD (bring your own vulnerable driver) ransomware campaigns. |
References
| Link | Providers |
|---|---|
| https://cschwarz1.github.io/posts/0x04/ |
|
| https://www.broadcom.com |
|
History
Thu, 19 Sep 2024 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:o:broadcom:lsi_pci-sv92ex_firmware:2.2.100.1:*:*:*:*:*:*:* | |
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-09-19T14:04:25.042Z
Reserved: 2023-04-24T00:00:00.000Z
Link: CVE-2023-31096
Updated: 2024-08-02T14:45:25.772Z
Status : Modified
Published: 2023-10-10T19:15:09.530
Modified: 2024-11-21T08:01:24.497
Link: CVE-2023-31096
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD