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.
Attack Vector 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
Vendors | Products |
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Lenovo |
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Configuration 1 [-]
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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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References
Link | Resource |
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https://support.lenovo.com/us/en/product_security/LEN-72074 | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: lenovo
Published: 2022-05-18T16:10:24
Updated: 2022-05-18T16:10:24
Reserved: 2021-11-12T00:00:00
Link: CVE-2021-3956
JSON object: View
NVD Information
Status : Analyzed
Published: 2022-05-18T16:15:08.063
Modified: 2022-06-06T18:28:15.027
Link: CVE-2021-3956
JSON object: View
Redhat Information
No data.
CWE