CVE-2023-45239

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 34.02% Top 5%
Vendor Advisory github.com
Affected: Meta tac_plus
Published at:
Updated at:

References

Link Tags
https://github.com/facebook/tac_plus/pull/41 patch exploit
https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3 vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4J7ZYMFZB4G4OU5EDJPQLP6F6RKDGIH/ third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2023-45239?
CVE-2023-45239 has been scored as a critical severity vulnerability.
How to fix CVE-2023-45239?
To fix CVE-2023-45239, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-45239 being actively exploited in the wild?
It is possible that CVE-2023-45239 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~34% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-45239?
CVE-2023-45239 affects Meta tac_plus.
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