A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.
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Wed, 14 Aug 2024 01:00:00 +0000
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MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2022-01-28T00:00:00
Updated: 2024-08-03T17:16:03.564Z
Reserved: 2021-11-29T00:00:00
Link: CVE-2021-4034
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2022-01-28T20:15:12.193
Modified: 2024-06-28T14:14:04.403
Link: CVE-2021-4034
Redhat