CVE-2021-3560

HIGH7.8

CISA KEV

Published 2022-02-16 · Updated 2026-06-17 · Source secalert@redhat.com

Summary

CVE-2021-3560 is a high-severity (CVSS 7.8) vulnerability in Red Hat Polkit. CISA added it to the Known Exploited Vulnerabilities catalog on May 12, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by June 2, 2023. CISA does not currently list it as used in ransomware campaigns. Red Hat has 9 vulnerabilities in the KEV catalog, 4 of them linked to ransomware.

All 9 known-exploited Red Hat vulnerabilities →

Description

It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-863CWE-754

CISA Known-Exploited Vulnerability

Product: Red Hat — Polkit

Name: Red Hat Polkit Incorrect Authorization Vulnerability

Date added: 2023-05-12 · Due: 2023-06-02

Required action: Apply updates per vendor instructions.

References

View on NVD

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