CVE-2021-34997

HIGH

Commvault Commcell - Unrestricted File Upload

Title source: rule
STIX 2.1

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 AppStudioUploadHandler class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE. Was ZDI-CAN-13894.

References (1)

Core 1
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-1332/

Scores

CVSS v3 8.8
EPSS 0.0211
EPSS Percentile 84.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-434
Status published
Products (1)
commvault/commcell 11.22.22
Published Jan 13, 2022
Tracked Since Feb 18, 2026