CVE-2021-34997
moderate-risk
Published 2022-01-13
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.
Do I need to act?
~
2.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (2)
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1332/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1332/
40
/ 100
moderate-risk
Severity
30/34 · Critical
Exploitability
5/34 · Minimal
Exposure
5/34 · Minimal