Critical severity · published Jan 13, 2022
CVE-2021-34993
This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22
9.8
CVSS
5.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.4% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Commcell · Commvault
11.22.22 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34993
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34993
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1328/
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