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 Oct 6, 2023
9.8
CRITICALCVSS 3.1
EPSS 1.88%
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.
Affected products
-
- Version 0StatusaffectedConstraints<4fdf178
- Version
Configuration 2
- 39
-
- Version 0StatusaffectedConstraints<4fdf178
- Version
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Sep 19, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.88% (0.01876) | 78.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.81% (0.01813) | 75.77th | v5 (v2026.06.15) |
| Mar 25, 2026 | 28.69% (0.28689) | 96.50th | v4 (v2025.03.14) |
| Nov 21, 2025 | 35.89% (0.35891) | 96.90th | v4 (v2025.03.14) |
| Nov 18, 2025 | 19.95% (0.19953) | 95.06th | v4 (v2025.03.14) |
| Jul 13, 2025 | 35.89% (0.35891) | 96.91th | v4 (v2025.03.14) |
| Jun 24, 2025 | 28.69% (0.28689) | 96.28th | v4 (v2025.03.14) |
| Apr 15, 2025 | 34.02% (0.34018) | 96.67th | v4 (v2025.03.14) |
| Mar 30, 2025 | 19.95% (0.19953) | 94.99th | v4 (v2025.03.14) |
| Mar 29, 2025 | 28.74% (0.28742) | 94.52th | v4 (v2025.03.14) |
| Mar 28, 2025 | 19.95% (0.19953) | 95.00th | v4 (v2025.03.14) |
| Mar 27, 2025 | 39.23% (0.39229) | 96.79th | v4 (v2025.03.14) |
| Mar 25, 2025 | 19.95% (0.19953) | 94.95th | v4 (v2025.03.14) |
| Mar 24, 2025 | 28.74% (0.28742) | 96.11th | v4 (v2025.03.14) |
| Mar 20, 2025 | 19.95% (0.19953) | 95.03th | v4 (v2025.03.14) |
| Mar 19, 2025 | 28.74% (0.28742) | 95.94th | v4 (v2025.03.14) |
| Mar 17, 2025 | 19.95% (0.19953) | 95.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.72% (0.00721) | 81.27th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00293) | 68.31th | v3 (v2023.03.01) |
| Oct 13, 2023 | 0.29% (0.00293) | 65.62th | v3 (v2023.03.01) |
| Oct 10, 2023 | 0.06% (0.00064) | 26.55th | v3 (v2023.03.01) |
| Oct 7, 2023 | 0.05% (0.00053) | 19.08th | v3 (v2023.03.01) |
References (3)
- https://github.com/facebook/tac_plus/pull/41 x_refsource_MISCExploitPatch
- https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3 x_refsource_CONFIRMVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4J7ZYMFZB4G4OU5EDJPQLP6F6RKDGIH/ Mailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/facebook/tac_plus/pull/41 | x_refsource_MISCExploitPatch | |
| https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3 | x_refsource_CONFIRMVendor Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4J7ZYMFZB4G4OU5EDJPQLP6F6RKDGIH/ | Mailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.