What is the severity of CVE-2021-34993?

CVE-2021-34993 has a high severity rating due to its potential for unauthorized access and exploitation by remote attackers.

How do I fix CVE-2021-34993?

To fix CVE-2021-34993, upgrade Commvault CommCell to a version that addresses this vulnerability.

Who is affected by CVE-2021-34993?

Any installation of Commvault CommCell version 11.22.22 is vulnerable to CVE-2021-34993.

Can CVE-2021-34993 be exploited without authentication?

Yes, CVE-2021-34993 can be exploited without authentication, allowing remote attackers to bypass security measures.

What component is specifically affected by CVE-2021-34993?

The CVSearchService service is the specific component affected by CVE-2021-34993.

Vulnerability/
CVE-2021-34993

critical

9.8

CWE

287

13/1/2022

4/8/2024

25/2/2025

CVE-2021-34993: Commvault CommCell CVSearchService Authentication Bypass Vulnerability

First published: Thu Jan 13 2022(Updated: )

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.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Commvault	=11.22.22
Commvault

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Reference Links

https://www.zerodayinitiative.com/advisories/ZDI-21-1328/

Frequently Asked Questions

What is the severity of CVE-2021-34993?
CVE-2021-34993 has a high severity rating due to its potential for unauthorized access and exploitation by remote attackers.
How do I fix CVE-2021-34993?
To fix CVE-2021-34993, upgrade Commvault CommCell to a version that addresses this vulnerability.
Who is affected by CVE-2021-34993?
Any installation of Commvault CommCell version 11.22.22 is vulnerable to CVE-2021-34993.
Can CVE-2021-34993 be exploited without authentication?
Yes, CVE-2021-34993 can be exploited without authentication, allowing remote attackers to bypass security measures.
What component is specifically affected by CVE-2021-34993?
The CVSearchService service is the specific component affected by CVE-2021-34993.

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