FKIE_CVE-2023-45239
Vulnerability from fkie_nvd - Published: 2023-10-06 18:15 - Updated: 2026-06-17 06:28
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| tac_plus | * | ||
| fedoraproject | fedora | 39 |
{
"affected": [
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"defaultStatus": "affected",
"product": "tac_plus",
"vendor": "Meta",
"versions": [
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"lessThan": "4fdf178",
"status": "affected",
"version": "0",
"versionType": "git"
}
]
}
],
"source": "cve-assign@fb.com"
},
{
"affectedData": [
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"cpes": [
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],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
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"criteria": "cpe:2.3:a:facebook:tac_plus:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "2023-10-05",
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}
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Existe una falta de validaci\u00f3n de entrada en tac_plus antes del commit 4fdf178 que, cuando los comandos de autenticaci\u00f3n previa o posterior est\u00e1n habilitados, permite a un atacante que puede controlar el nombre de usuario, rem-addr o la direcci\u00f3n NAC enviada a tac_plus inyectar comandos de shell y obtener c\u00f3digo remoto ejecuci\u00f3n en el servidor tac_plus."
}
],
"id": "CVE-2023-45239",
"lastModified": "2026-06-17T06:28:30.733",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
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"ssvcV203": [
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"options": [
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{
"automatable": "yes"
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{
"technicalImpact": "total"
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],
"role": "CISA Coordinator",
"timestamp": "2024-09-19T16:12:07.879707Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-10-06T18:15:12.337",
"references": [
{
"source": "cve-assign@fb.com",
"tags": [
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],
"url": "https://github.com/facebook/tac_plus/pull/41"
},
{
"source": "cve-assign@fb.com",
"tags": [
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"url": "https://github.com/facebook/tac_plus/security/advisories/GHSA-p334-5r3g-4vx3"
},
{
"source": "cve-assign@fb.com",
"tags": [
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X4J7ZYMFZB4G4OU5EDJPQLP6F6RKDGIH/"
},
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],
"sourceIdentifier": "cve-assign@fb.com",
"vulnStatus": "Modified",
"weaknesses": [
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"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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