CVE-2021-3956

CVSS V2 Medium 4.3 CVSS V3 Medium 5.3
Description
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.
Overview
  • CVE ID
  • CVE-2021-3956
  • Assigner
  • psirt@lenovo.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-05-18T16:15:08
  • Last Modified Date
  • 2022-06-06T18:28:15
Weakness Enumerations
CWE URL
CWE-863 http://cwe.mitre.org/data/definitions/863.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:lenovo:xclarity_controller:*:*:*:*:*:*:*:* 1 OR 7.22_cdi382o
cpe:2.3:h:lenovo:thinkagile_hx1320:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx1321:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx1520-r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx1521-r:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx2320-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx2321:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx3320:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx3321:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx3375:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx3376:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx3520-g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx3521-g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx5520:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx5520-c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx5521:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx5521-c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx7520:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx7521:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx2320:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx3320:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx3520-g:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx5520:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx7320_n:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx7520:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_vx7520_n:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkstation_p920:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr530:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr550:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr570:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr590:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr630:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr645:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr650:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr665:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_st550:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:lenovo:xclarity_controller:*:*:*:*:*:*:*:* 1 OR 2.32_psi342n
cpe:2.3:h:lenovo:thinkagile_hx7820:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinkagile_hx7821:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr950:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:lenovo:xclarity_controller:*:*:*:*:*:*:*:* 1 OR 3.41_tei382m
cpe:2.3:h:lenovo:thinkagile_mx1021:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_se350:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:lenovo:xclarity_controller:*:*:*:*:*:*:*:* 1 OR 4.83_tei3c0n
cpe:2.3:h:lenovo:thinksystem_sd650:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sn550:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sn850:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr850:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr860:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:a:lenovo:xclarity_controller:*:*:*:*:*:*:*:* 1 OR 1.51_tgbt24l
cpe:2.3:h:lenovo:thinksystem_sr850:2.0:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:lenovo:thinksystem_sr860:2.0:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://support.lenovo.com/us/en/product_security/LEN-72074
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3956
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3956
History
Created Old Value New Value Data Type Notes
2022-05-18 17:00:14 Added to TrackCVE