CVE-2021-3956: A read-only authentication bypass vulnerability was reported in the Third Quarter 2021 release of Lenovo XClarity Controller (XCC) firmware affecting XCC…

PriorityP335medium5.3CVSS 3.1

AVNACLPRNUINSUCLINAN

EPSS

0.73%

50.1th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
lenovo	xclarity_controller	< 7.22_cdi382o	7.22_cdi382o
lenovo	xclarity_controller	< 2.32_psi342n	2.32_psi342n
lenovo	xclarity_controller	< 3.41_tei382m	3.41_tei382m
lenovo	xclarity_controller	< 4.83_tei3c0n	4.83_tei3c0n
lenovo	xclarity_controller	< 1.51_tgbt24l	1.51_tgbt24l
lenovo	xclarity_controller	—	—

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N

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