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CVE-2021-3560

Estado: AnalizadaAlta (7.8)⚠ Explotación activa

It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de escalada de privilegios local (AV:L, PR:L) que permite bypass de verificación de credenciales en polkit para obtener acceso root. Facilita creación de cuentas administrativas (T1078) y ejecución de comandos privilegiados (T1059).

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

Privileged Account ManagementExecution PreventionApplication Developer GuidanceActive Directory ConfigurationUser TrainingUser Account Management

Tecnologías afectadas (6)

Canonical — Ubuntu LinuxDebian — Debian LinuxPolkit Project — PolkitRedhat — Openshift Container PlatformRedhat — VirtualizationRedhat — Virtualization Host

CWE

Referencias

JSON original (NVD)

Mostrar
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