CVE-2021-34993 : Security Advisory and Response

This CVE-2021-34993 article provides details about a critical vulnerability found in Commvault CommCell version 11.22.22, allowing remote attackers to bypass authentication without the need for user interaction. The flaw lies in the CVSearchService service, enabling unauthorized access to high-impact operations.

Understanding CVE-2021-34993

CVE-2021-34993 relates to improper authentication in Commvault CommCell version 11.22.22, posing a significant risk to confidentiality, integrity, and availability.

What is CVE-2021-34993?

CVE-2021-34993 is a security vulnerability that permits attackers to circumvent authentication measures on affected Commvault CommCell installations, exploiting a lack of validation pre-authentication within the CVSearchService service.

The Impact of CVE-2021-34993

The vulnerability's CVSS v3.0 base score of 9.8 (Critical) implies a severe impact, with high risks to confidentiality, integrity, and availability. Attackers can execute unauthorized operations without requiring user privileges.

Technical Details of CVE-2021-34993

CVE-2021-34993 affects Commvault CommCell version 11.22.22, offering insights into the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The flaw enables remote threat actors to bypass authentication without user interaction on installations running Commvault CommCell 11.22.22, leading to unauthorized access and high-impact consequences.

Affected Systems and Versions

Commvault CommCell version 11.22.22 is specifically impacted by this vulnerability, exposing installations to exploitation by attackers aiming to compromise system security.

Exploitation Mechanism

By leveraging the identified flaw within the CVSearchService service, malicious actors can bypass authentication safeguards and gain unauthorized access to critical system functions.

Mitigation and Prevention

To protect systems from CVE-2021-34993, immediate actions and long-term security practices can help prevent unauthorized access and potential data breaches.

Immediate Steps to Take

Update Commvault CommCell to a patched version to eliminate the vulnerability and enhance security measures.

Long-Term Security Practices

Implement multi-factor authentication and strict access controls to mitigate the risk of unauthorized access.

Patching and Updates

Regularly apply security patches and updates provided by Commvault to address known vulnerabilities and enhance system resilience.