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CVE-2025-32438

Estado: AplazadaAlta (8.8)—

make-initrd-ng is a tool for copying binaries and their dependencies. Local privilege escalation affecting all NixOS users. With systemd.shutdownRamfs.enable enabled (the default) a local user is able to create a program that will be executed by root during shutdown. Patches exist for NixOS 24.11 and 25.05 / unstable. As a workaround, set systemd.shutdownRamfs.enable = false;.

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.

Escalada de privilegios local (AV:L, PR:L) sin interacción del usuario. Usuario local ejecuta programa como root durante shutdown, logrando ejecución de comandos con máximos privilegios (C:H, I:H, A:H).

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

Execution PreventionPrivileged Account ManagementAuditUpdate SoftwareUser Account ManagementThreat Intelligence Program

Tecnologías afectadas (1)

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

Nixos — NixosAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-32438",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-32438",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-15T20:08:46.640080Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "NixOS",
          "product": "nixpkgs",
          "versions": [
            {
              "status": "affected",
              "version": "< b17590193d8e5697000c23c66afcf11e1753734d"
            },
            {
              "status": "affected",
              "version": "< fbf76bf72b161b9f4ab97704a8258776d5f3ffba"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-04-15T20:15:39.533",
  "references": [
    {
      "url": "https://github.com/NixOS/nixpkgs/commit/b17590193d8e5697000c23c66afcf11e1753734d",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/NixOS/nixpkgs/commit/fbf76bf72b161b9f4ab97704a8258776d5f3ffba",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/NixOS/nixpkgs/security/advisories/GHSA-m7pq-h9p4-8rr4",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-378"
        },
        {
          "lang": "en",
          "value": "CWE-379"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "make-initrd-ng is a tool for copying binaries and their dependencies. Local privilege escalation affecting all NixOS users. With systemd.shutdownRamfs.enable enabled (the default) a local user is able to create a program that will be executed by root during shutdown. Patches exist for NixOS 24.11 and 25.05 / unstable. As a workaround, set systemd.shutdownRamfs.enable = false;."
    },
    {
      "lang": "es",
      "value": "make-initrd-ng es una herramienta para copiar binarios y sus dependencias. La escalada de privilegios locales afecta a todos los usuarios de NixOS. Con systemd.shutdownRamfs.enable habilitado (predeterminado), un usuario local puede crear un programa que será ejecutado por root durante el apagado. Existen parches para NixOS 24.11 y 25.05 (inestable). Como workaround, configure systemd.shutdownRamfs.enable = false;."
    }
  ],
  "lastModified": "2026-06-17T09:11:59.637",
  "sourceIdentifier": "security-advisories@github.com"
}