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Security Bulletin: Polkit as used by IBM® QRadar SIEM is vulnerable to privilege escalation (CVE-2021-4034)

Security Bulletin


Summary

There is a privilege escalation vulnerability in Polkit which is used by IBM® QRadar SIEM indirectly as a dependency.

Vulnerability Details

CVEID:   CVE-2021-4034
DESCRIPTION:   Polkit could allow a local authenticated attacker to gain elevated privileges on the system, caused by incorrect handling of the argument vectors in the pkexec utility. By crafting environment variables in a specific way, an attacker could exploit this vulnerability to execute commands with root privileges.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/218087 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM QRadar SIEM 7.5.0 GA

IBM QRadar SIEM 7.4.3 GA - 7.4.3 Fix Pack 4

IBM QRadar SIEM 7.3.3 GA - 7.3.3 Fix Pack 10

 


Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

15 Feb 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location

Worldwide

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Document Information

Modified date:
18 February 2022

UID

ibm16557426