CVE-2022-30333

Estado: AnalizadaAlta (7.5)⚠ Explotación activa

RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. NOTE: WinRAR and Android RAR are unaffected.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 99%
Percentil entre todas las CVEs puntuadas: 100
Fecha de la puntuación: 2/10/2026

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).

CISA KEV — explotada activamente

Añadida al catálogo: 9/8/2022
Plazo de remediación: 30/8/2022
Uso conocido en ransomware: Known

🎯 Técnicas ATT&CK

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

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1565.001 Stored Data Manipulationimpact90 %
Impacto secundarioT1098.004 SSH Authorized Keyspersistence · privilege escalation80 %

Directory traversal en UnRAR (CWE-22) permite escribir archivos arbitrarios durante extracción (ej. ~/.ssh/authorized_keys), viabilizando manipulación de datos y acceso no autorizado a cuentas sin privilegios previos.

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

Restrict File and Directory Permissions Vulnerability Scanning User Account Management Privileged Account Management Remote Data Storage Network Segmentation

Tecnologías afectadas (2)

Debian — Debian Linux Rarlab — Unrar

CWE

CWE-22
CWE-22, CWE-59

Referencias

JSON original (NVD)

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