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GLSA-202402-13 : TACACS+: Remote Code Execution

critical Nessus Plugin ID 190666

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Description

The remote host is affected by the vulnerability described in GLSA-202402-13 (TACACS+: Remote Code Execution)

 - 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. (CVE-2023-45239)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Gentoo has discontinued support for TACACS+. We recommend that users unmerge it:

 # emerge --ask --depclean net-nds/tac_plus

See Also

https://security.gentoo.org/glsa/202402-13

https://bugs.gentoo.org/show_bug.cgi?id=918536

Plugin Details

Severity: Critical

ID: 190666

File Name: gentoo_GLSA-202402-13.nasl

Version: 1.0

Type: local

Published: 2/18/2024

Updated: 2/18/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2023-45239

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/18/2024

Vulnerability Publication Date: 10/6/2023

Reference Information

CVE: CVE-2023-45239