Vulnerability Intelligence Report
CVE-2021-34994
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 DataProvider class. The issue results from the lack of proper validation of a user-supplied string before executing it as JavaScript code. An attacker can leverage this vulnerability to escape the JavaScript sandbox and execute Java code in the context of NETWORK SERVICE. Was ZDI-CAN-13755.
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:5.79%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-20 ↗CWE-20: Improper Input Validation
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Commvault | CommCell | 11.22.22 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
5.789%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Zero Day Initiative · Bug Bounty Provider · Japan |
| Reserved | 2021-06-17T00:00:00 |
| Published | 2022-01-13T21:44:47 |
| Last Updated | 2024-08-04T00:26:55 |
Community Chatter & Buzz