Auth bypass in Gentoo Linux
CVE-2022-23220
USBView 2.1 before 2.2 allows some local users (e.g., ones logged in via SSH) to execute arbitrary code as root because certain Polkit settings (e.g., allow_any=yes) for pkexec disable the authentication requirement. Code execution can, for example, use the --gtk-module option. This affects Ubuntu, Debian, and Gentoo.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/gregkh/usbview/commit/bf374fa4e5b9a756789dfd88efa93806a395463b (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/01/21/1 (Exploit, Patch, Mailing List, Third Party Advisory)
- www.debian.org/security/2022/dsa-5052 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/01/22/1 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202310-15 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23220?
- CVE-2022-23220 is a high-severity vulnerability in Gentoo Linux, classified under Missing Authentication for Critical Function. CVSS score: 7.8/10. Published 2022-01-21.
- How severe is CVE-2022-23220?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-23220 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.