Vulnerability in Facebook Tac_plus
CVE-2023-45239
A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands an…
EPSS: 0.018 (76.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Facebook Tac_plus
- Meta Tac_plus — versions 0
- Fedoraproject Fedora — versions 39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve-assign@fb.com (Exploit, Patch, x_refsource_MISC)
- cve-assign@fb.com (x_refsource_CONFIRM, Vendor Advisory)
- cve-assign@fb.com (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-45239?
- CVE-2023-45239 is a critical-severity vulnerability in Facebook Tac_plus, classified under CWE-790. CVSS score: 9.8/10. Published 2023-10-06.
- How severe is CVE-2023-45239?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-45239 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.