CVE-2021-34994

Published on: 01/13/2022 12:00:00 AM UTC

Last Modified on: 01/22/2022 03:50:00 AM UTC

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Certain versions of Commcell from Commvault contain the following vulnerability:

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.

  • CVE-2021-34994 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo Commvault - CommCell version 11.22.22

CVSS3 Score: 8.8 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW LOW NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 6.5 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK LOW SINGLE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL PARTIAL PARTIAL

CVE References

Description Tags Link
ZDI-21-1329 | Zero Day Initiative www.zerodayinitiative.com
text/html
URL Logo MISC www.zerodayinitiative.com/advisories/ZDI-21-1329/

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationCommvaultCommcell11.22.22AllAllAll
  • cpe:2.3:a:commvault:commcell:11.22.22:*:*:*:*:*:*:*:

Discovery Credit

Brandon Perry, Justin Kennedy and Steven Seeley of Source Incite

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-34994 : This vulnerability allows remote attackers to execute arbitrary code on affected installations of… twitter.com/i/web/status/1… 2022-01-13 22:23:51
Twitter Icon @Robo_Alerts Potentially Critical CVE Detected! CVE-2021-34994 Description: This vulnerability allows remote attackers to execut… twitter.com/i/web/status/1… 2022-01-13 22:56:13
Reddit Logo Icon /r/netcve CVE-2021-34994 2022-01-13 23:39:06
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