CVE-2023-45239 - Vulnerability Details - OpenCVE

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.

Published: 2023-10-06

Score: 9.8 Critical

EPSS: 28.7% Moderate

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Meta

tac_plus

affected

Version	Status	Constraints
`0`	affected	< 4fdf178

Configuration 1 [-]

cpe:2.3:a:facebook:tac_plus:*:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.28689.

Exploitation none

Automatable yes

Technical Impact total

References

Link	Providers
https://github.com/facebook/tac_plus/pull/41
https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4J7ZYMFZB4G4OU5EDJPQLP6F6RKDGIH/

History

Sun, 13 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.28689}`	epss `{'score': 0.35891}`

Thu, 19 Sep 2024 17:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Meta Meta tac Plus
Weaknesses		CWE-790
CPEs		cpe:2.3:a:meta:tac_plus::::::::
Vendors & Products		Meta Meta tac Plus
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Subscriptions

Facebook Tac Plus

Fedoraproject Fedora

Meta Tac Plus

MITRE

Status: PUBLISHED

Assigner: facebook

Published: 2023-10-06T17:16:16.797Z

Updated: 2025-02-13T17:13:58.340Z

Reserved: 2023-10-05T21:36:59.884Z

Link: CVE-2023-45239

Vulnrichment

Updated: 2024-08-02T20:14:19.824Z

NVD

Status : Modified

Published: 2023-10-06T18:15:12.337

Modified: 2024-11-21T08:26:36.877

Link: CVE-2023-45239

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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