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CVE-2021-34996

8.8 · HIGH

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22.

Published Jan 13, 2022CWE-749EPSS 82.26%

Overview

CVE-2021-34996 is a high-severity vulnerability. It was published on January 13, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.zerodayinitiative.com/advisories/ZDI-21-1331/Refwww.zerodayinitiative.com/advisories/ZDI-21-1331/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-34996?

CVE-2021-34996 is a high-severity vulnerability. It was published on January 13, 2022 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2021-34996?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-34996?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-34996?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-34996 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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