Home/CVE/This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.2
CVE

CVE-2021-34993

This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.2

This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service.

The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.

CRITICAL · CVSS 9.8 EPSS 0.00824
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-287Improper Authentication
CWE-287Improper Authentication
▤

Affected Products & Versions

1
commvault commcellall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · zdi-disclosures@trendmicro.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jan 2022 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.zerodayinitiative.com/advisories/ZDI-21-1328/Third Party AdvisoryVDB Entry
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