CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2021-3560
High (7.8) in Red Hat Polkit. In CISA KEV since 2023-05-12. EPSS 24% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 24% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
- CISA KEV
- listed 2023-05-12, due 2023-06-02
- CWEs
- CWE-754, CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- debian:debian_linux
- polkit_project:polkit
- redhat:openshift_container_platform
- redhat:virtualization
- redhat:virtualization_host
References
- http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html
- http://packetstormsecurity.com/files/172846/Facebook-Fizz-Denial-Of-Service.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1961710
- https://github.blog/2021-06-10-privilege-escalation-polkit-root-on-linux-with-bug/
- http://packetstormsecurity.com/files/172836/polkit-Authentication-Bypass.html