Arbitrary file upload in CommCell - CVE-2021-34995
Published: November 24, 2021
Vulnerability identifier: #VU58338
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-34995
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Commvault
Affected software:
CommCell
CommCell
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload within the DownloadCenterUploadHandler class. A remote authenticated attacker can upload a malicious file and execute it on the server.
How to mitigate CVE-2021-34995
Install updates from vendor's website.