Polkit privilege escalation | CVE-2021-4034
NAME
Polkit privilege escalation
- Platforms Affected:
Polkit Polkit - Risk Level:
7.8 - Exploitability:
Proof of Concept - Consequences:
Gain Privileges
DESCRIPTION
Polkit could allow a local authenticated attacker to gain elevated privileges on the system, caused by incorrect handling of argument vector 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 3.0 Information
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Access Vector: Local
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Refer to polkit GIT Repository for patch, upgrade or suggested workaround information. See References. For other distributions: Apply the appropriate update for your system. See References.
- Reference Link:
https://seclists.org/oss-sec/2022/q1/80 - Reference Link:
https://gitlab.freedesktop.org/polkit/polkit/
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