CVEvulnerability

CVE-2018-6851

7.8 HIGH Published 2018-07-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-07-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
7.8 HIGH — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-119

Description

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 0x80206040. By crafting an input buffer we can control the execution path to the point where the constant DWORD 0 will be written to 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.

Affected configurations

• sophos safeguard easy device encryption client 6.00 • sophos safeguard easy device encryption client 6.10 • sophos safeguard easy device encryption client 7.00 • sophos safeguard enterprise client 5.60.3 • sophos safeguard enterprise client 6.00 • sophos safeguard enterprise client 6.00.1 • sophos safeguard enterprise client 6.10 • sophos safeguard enterprise client 7.00 • sophos safeguard enterprise client 8.00 • sophos safeguard lan crypt client 3.90.1 • sophos safeguard lan crypt client 3.90.2 • sophos safeguard lan crypt client 3.95.1

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References