High severity · published Jan 13, 2022
CVE-2021-34996
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22
8.8
CVSS
82.3%
EPSS
No
On KEV
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the Demo_ExecuteProcessOnGroup workflow. By creating a workflow, an attacker can specify an arbitrary command to be executed. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-13889.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)82.3% · higher than 100% 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-2021-34996
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34996
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1331/
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