CVE-2021-3560: Red Hat Polkit Incorrect Authorization Vulnerability
High · CVSS 7.8 (CVSS 3.1)KEV known exploitedEPSS 23.7%, 98th percentilePublished Updated Assigner: redhat
In CISA’s Known Exploited Vulnerabilities catalog: Red Hat Polkit Incorrect Authorization Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
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.
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · CWE-863
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
polkit
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html (opens in new tab)
- packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html (opens in new tab)
- bugzilla.redhat.com/show_bug.cgi (opens in new tab)
- github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/ (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)