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CVE-2018-6852

Estado: ModificadaAlta (7.8)—

Sophos SafeGuard Enterprise before 8.00.5, SafeGuard Easy before 7.00.3, and SafeGuard LAN Crypt before 3.95.2 are vulnerable to Local Privilege Escalation via IOCTL 0x80202298. By crafting an input buffer we can control the execution path to the point where the nt!memset function is called to zero out contents of a user-controlled address. We can take advantage of this condition to zero-out the pointer to the security descriptor in the object header of a privileged process or modify the security descriptor itself and run code in the context of a process running as SYSTEM.

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).

Tecnologías afectadas (3)

Sophos — Safeguard Easy Device Encryption ClientSophos — Safeguard Enterprise ClientSophos — Safeguard LAN Crypt Client

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-6852",
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  "published": "2018-07-09T18:29:00.700",
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      "value": "Sophos SafeGuard Enterprise before 8.00.5, SafeGuard Easy before 7.00.3, and SafeGuard LAN Crypt before 3.95.2 are vulnerable to Local Privilege Escalation via IOCTL 0x80202298. By crafting an input buffer we can control the execution path to the point where the nt!memset function is called to zero out contents of a user-controlled address. We can take advantage of this condition to zero-out the pointer to the security descriptor in the object header of a privileged process or modify the security descriptor itself and run code in the context of a process running as SYSTEM."
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      "value": "Sophos SafeGuard Enterprise en versiones anteriores a la 8.00.5, SafeGuard Easy en versiones anteriores a la 7.00.3, y SafeGuard LAN Crypt en versiones anteriores a la 3.95.2 son vulnerables a una escalada de privilegios local mediante IOCTL 0x80202298. Manipulando un búfer de entrada, es posible controlar la ruta de ejecución al punto en el que se llama a la función nt!memset para eliminar contenidos de una dirección controlada por el usuario. Se puede aprovechar esta situación para eliminar el puntero al descriptor de seguridad en la cabecera del objeto de un proceso privilegiado o modificar el descriptor de seguridad en sí para ejecutar código en el contexto de un proceso que se está ejecutando como SYSTEM."
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  "lastModified": "2026-06-17T02:02:21.447",
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