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CVE-2021-34994

Published: Jan 13, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-20
NVD MITRE
8.8CVSSHIGH
EPSS Score
5.8%
Top 7.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-20CWE-94

Affected Products

CommCellCommvault
On-prem
Enterprise Software / itsm-monitoring
CommCellCommvault Systems Inc.
On-prem
Enterprise Software / itsm-monitoring
commcellcommvault
On-prem
Enterprise Software / itsm-monitoring
commvaultcommercialEnterprise Software
commvault systems inc.commercialEnterprise Softwareaka commcell, commvault edge

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1329/
zerodayinitiative.com
https://www.zerodayinitiative.com/advisories/ZDI-21-1329
zerodayinitiative.com
https://www.cybersecurity-help.cz/vdb/SB2021112404
cybersecurity-help.cz

Timeline

Published
Jan 13, 2022
Last Updated
Nov 21, 2024

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