CVE-2025-23369
An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.12.14, 3.13.10, 3.14.7, 3.15.2, and 3.16.0. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 7.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.62%
- Percentil entre todas las CVEs puntuadas: 75
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement75 % - Impacto principal
T1556Modify Authentication Processdefense impairment · persistence · credential access80 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access75 %
AV:N con PR:L indica explotación remota por usuario autenticado (T1210). CWE-347 (verificación criptográfica impropia) permite falsificación de identidad/suplantación (T1556), y por tanto acceso con credenciales falsas (T1078).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-347
Referencias
- https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.14
- https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.10
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.7
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.2
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-23369",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-23369",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-01-21T19:11:41.343670Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "product-cna@github.com",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 7.6,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "LOW",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "product-cna@github.com",
"affectedData": [
{
"vendor": "GitHub",
"product": "Enterprise Server",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "3.12.14",
"status": "unaffected"
}
],
"version": "3.12.0",
"versionType": "semver",
"lessThanOrEqual": "3.12.13"
},
{
"status": "affected",
"changes": [
{
"at": "3.13.10",
"status": "unaffected"
}
],
"version": "3.13.0",
"versionType": "semver",
"lessThanOrEqual": "3.13.9"
},
{
"status": "affected",
"changes": [
{
"at": "3.14.7",
"status": "unaffected"
}
],
"version": "3.14.0",
"versionType": "semver",
"lessThanOrEqual": "3.14.6"
},
{
"status": "affected",
"changes": [
{
"at": "3.15.2",
"status": "unaffected"
}
],
"version": "3.15.0",
"versionType": "semver",
"lessThanOrEqual": "3.15.1"
},
{
"status": "unaffected",
"version": "3.16.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2025-01-21T19:15:12.147",
"references": [
{
"url": "https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.14",
"tags": [
"Release Notes"
],
"source": "product-cna@github.com"
},
{
"url": "https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.10",
"tags": [
"Release Notes"
],
"source": "product-cna@github.com"
},
{
"url": "https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.7",
"tags": [
"Release Notes"
],
"source": "product-cna@github.com"
},
{
"url": "https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.2",
"tags": [
"Release Notes"
],
"source": "product-cna@github.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "product-cna@github.com",
"description": [
{
"lang": "en",
"value": "CWE-347"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed signature spoofing for unauthorized internal users. Instances not utilizing SAML single sign-on or where the attacker is not already an existing user were not impacted. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.12.14, 3.13.10, 3.14.7, 3.15.2, and 3.16.0. This vulnerability was reported via the GitHub Bug Bounty program."
},
{
"lang": "es",
"value": "Se identificó una vulnerabilidad de verificación incorrecta de la firma criptográfica en GitHub Enterprise Server que permitía la suplantación de firmas para usuarios internos no autorizados. Las instancias que no utilizaban el inicio de sesión único SAML o en las que el atacante no era un usuario existente no se vieron afectadas. Esta vulnerabilidad afectó a todas las versiones de GitHub Enterprise Server anteriores a 3.12.14, 3.13.10, 3.14.7, 3.15.2 y 3.16.0. Esta vulnerabilidad se informó a través del programa de recompensas por errores de GitHub."
}
],
"lastModified": "2026-06-17T08:53:51.970",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EE10F81C-71FA-44B0-AB69-D81F0EBB8BFD",
"versionEndExcluding": "3.12.14"
},
{
"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F41C22D0-8F34-41EC-8FC2-876F366985DC",
"versionEndExcluding": "3.13.10",
"versionStartIncluding": "3.13.0"
},
{
"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0B80C113-A145-4E0F-9278-3E7B67638EEA",
"versionEndExcluding": "3.14.7",
"versionStartIncluding": "3.14.0"
},
{
"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2AF3F237-C9F3-4C07-B729-6181E985A347",
"versionEndExcluding": "3.15.2",
"versionStartIncluding": "3.15.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "product-cna@github.com"
}