CVE-2021-34996

moderate-risk
Published 2022-01-13

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.

Do I need to act?

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20.5% chance of exploitation in next 30 days
EPSS score — higher than 80% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Commvault

References (2)

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-1331/
Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-21-1331/
49
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 14/34 · Moderate
Exposure 5/34 · Minimal