Vulnerability Description
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 and gain remote code execution on the tac_plus server.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tac Plus | < 2023-10-05 | |
| Fedoraproject | Fedora | 39 |
Related Weaknesses (CWE)
References
- https://github.com/facebook/tac_plus/pull/41ExploitPatch
- https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3Vendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing ListThird Party Advisory
- https://github.com/facebook/tac_plus/pull/41ExploitPatch
- https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3Vendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]Mailing ListThird Party Advisory
FAQ
What is CVE-2023-45239?
CVE-2023-45239 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 ...
How severe is CVE-2023-45239?
CVE-2023-45239 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-45239?
Check the references section above for vendor advisories and patch information. Affected products include: Facebook Tac Plus, Fedoraproject Fedora.