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CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability

criticalknown exploitedpublic exploitCVE-2021-3560
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Red Hat Polkit contains an incorrect authorization vulnerability through the bypassing of credential checks for D-Bus requests, allowing for privilege escalation.

CSIRTS triage

vendor: Red Hatproduct: PolkitPrivilege escalation
What
There is an incorrect authorization vulnerability allowing for privilege escalation.
Who is affected
Deployments of Red Hat Polkit are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch for Polkit.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-05-12
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-3560

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-3560coverage & exploitation statusNVD · CVE.org

Recent advisories for Red Hat Polkit

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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