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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History
Fri, 22 Nov 2024 12:00:00 +0000
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Tue, 05 Nov 2024 20:00:00 +0000
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Starwindsoftware starwind Hyperconverged Appliance
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Mon, 04 Nov 2024 16:15:00 +0000
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kev
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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: 2024-11-04T14:58:43.983Z
Reserved: 2021-11-29T00:00:00
Link: CVE-2021-4034
Vulnrichment
Updated: 2024-09-23T18:05:54.355Z
NVD
Status : Modified
Published: 2022-01-28T20:15:12.193
Modified: 2024-11-21T06:36:45.880
Link: CVE-2021-4034
Redhat