CISA KEV · Known exploitedHigh

CVE-2021-3560

Red Hat Polkit

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: 7.8
EPSS: 22.2%
CISA KEV: Listed
Published: 2022.02.17

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability22.2%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Red Hat Polkit
Affected versions: polkit 0.119, < 0.119, 11.0, 20.04, 4.0, 4.7
Fixed versions: 0.119

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2023.06.02

1
Identify
Confirm that Red Hat Polkit and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-754, CWE-863
KEV added: 2023.05.12
Ransomware use: 미확인