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CVE-2025-29906

Estado: AplazadaAlta (8.6)—

Finit is a fast init for Linux systems. Versions starting from 3.0-rc1 and prior to version 4.11 bundle an implementation of getty for the `tty` configuration directive that can bypass `/bin/login`, i.e., a user can log in as any user without authentication. This issue has been patched in version 4.11.

CVSS

Probabilidad de explotación (EPSS)

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.

Requiere interacción del usuario (UI:R) para usar getty en tty; bypassa login para acceso sin autenticación (T1078) y potencial escalada a root (T1068).

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

Application Isolation and SandboxingExploit ProtectionUpdate SoftwareApplication Developer GuidanceActive Directory ConfigurationUser Training

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Finit — FinitAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-29906",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-29906",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-30T17:33:11.904747Z"
        }
      }
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    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.6,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 1.8
      }
    ]
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  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "troglobit",
          "product": "finit",
          "versions": [
            {
              "status": "affected",
              "version": ">= 3.0-rc1, < 4.11"
            }
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  ],
  "published": "2025-04-29T23:16:04.393",
  "references": [
    {
      "url": "https://github.com/troglobit/finit/commit/6528628b5c771c25ffa0cb1a46c6c89d9d0d69e0",
      "source": "security-advisories@github.com"
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      "description": [
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      "lang": "en",
      "value": "Finit is a fast init for Linux systems. Versions starting from 3.0-rc1 and prior to version 4.11 bundle an implementation of getty for the `tty` configuration directive that can bypass `/bin/login`, i.e., a user can log in as any user without authentication. This issue has been patched in version 4.11."
    },
    {
      "lang": "es",
      "value": "Finit es un sistema de inicio rápido para sistemas Linux. Las versiones 3.0-rc1 y anteriores a la 4.11 incluyen una implementación de getty para la directiva de configuración `tty`, que permite omitir `/bin/login`, lo que permite a un usuario iniciar sesión como cualquier usuario sin autenticación. Este problema se ha corregido en la versión 4.11."
    }
  ],
  "lastModified": "2026-06-17T09:05:51.653",
  "sourceIdentifier": "security-advisories@github.com"
}