A read-only authentication bypass vulnerability was reported in the Third Quarter 2021 release of Lenovo XClarity Controller (XCC) firmware affecting XCC devices configured in LDAP Authentication Only Mode and using an LDAP server that supports “unauthenticated bind”, such as Microsoft Active Directory. An unauthenticated user can gain read-only access to XCC in such a configuration, thereby allowing the XCC device configuration to be viewed but not changed. XCC devices configured to use local authentication, LDAP Authentication + Authorization Mode, or LDAP servers that support only “authenticated bind” and/or “anonymous bind” are not affected.
Metrics
No CVSS v4.0
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
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Lenovo |
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Configuration 1 [-]
AND |
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Configuration 2 [-]
AND |
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Configuration 3 [-]
AND |
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Configuration 4 [-]
AND |
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Configuration 5 [-]
AND |
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No data.
References
Link | Providers |
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https://support.lenovo.com/us/en/product_security/LEN-72074 |
History
No history.
MITRE
Status: PUBLISHED
Assigner: lenovo
Published: 2022-05-18T16:10:24
Updated: 2024-08-03T17:09:09.619Z
Reserved: 2021-11-12T00:00:00
Link: CVE-2021-3956
Vulnrichment
No data.
NVD
Status : Modified
Published: 2022-05-18T16:15:08.063
Modified: 2024-11-21T06:23:13.527
Link: CVE-2021-3956
Redhat
No data.