CVE-2021-34997 : Vulnerability Insights and Analysis
Learn about CVE-2021-34997 affecting Commvault CommCell 11.22.22. This vulnerability allows remote code execution with high severity. Find out impact, mitigation, and prevention measures.
This CVE-2021-34997 article provides an overview of a vulnerability affecting Commvault CommCell version 11.22.22, allowing remote attackers to execute arbitrary code with high severity.
Understanding CVE-2021-34997
CVE-2021-34997 is a vulnerability in Commvault CommCell 11.22.22 that enables attackers to execute code remotely, bypassing authentication mechanisms.
What is CVE-2021-34997?
This vulnerability in Commvault CommCell 11.22.22 allows attackers to upload arbitrary files due to improper user-supplied data validation, leading to code execution in the context of NETWORK SERVICE.
The Impact of CVE-2021-34997
With a CVSS base score of 8.8 and high severity levels across confidentiality, integrity, and availability, CVE-2021-34997 poses a significant risk to affected systems.
Technical Details of CVE-2021-34997
CVE-2021-34997 belongs to the CWE-434 category, representing the unrestricted upload of files with dangerous types.
Vulnerability Description
The flaw exists within the AppStudioUploadHandler class, allowing attackers to exploit the lack of proper data validation to execute arbitrary code.
Affected Systems and Versions
Commvault CommCell version 11.22.22 is specifically impacted by this vulnerability.
Exploitation Mechanism
Attackers can bypass authentication mechanisms to upload malicious files, leveraging this vulnerability to execute code in the NETWORK SERVICE context.
Mitigation and Prevention
To address CVE-2021-34997, immediate actions and long-term security practices are crucial.
Immediate Steps to Take
It is recommended to apply security patches, restrict network access, and monitor for any suspicious activities related to file uploads.
Long-Term Security Practices
Implement strict input validation, regularly update software, conduct security assessments, and educate users on safe file uploading practices.
Patching and Updates
Commvault users should apply the latest patches provided by the vendor to mitigate the risk of exploitation due to CVE-2021-34997.