CVE-2018-6852
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%
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.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| sophos | safeguard_easy_device_encryption_client | 6.00 | cpe:2.3:a:sophos:safeguard_easy_device_encryption_client:6.00:*:*:*:*:*:*:* |
| sophos | safeguard_easy_device_encryption_client | 6.10 | cpe:2.3:a:sophos:safeguard_easy_device_encryption_client:6.10:*:*:*:*:*:*:* |
| sophos | safeguard_easy_device_encryption_client | 7.00 | cpe:2.3:a:sophos:safeguard_easy_device_encryption_client:7.00:*:*:*:*:*:*:* |
| sophos | safeguard_enterprise_client | 5.60.3 | cpe:2.3:a:sophos:safeguard_enterprise_client:5.60.3:vs-nfd:*:*:*:*:*:* |
| sophos | safeguard_enterprise_client | 6.00 | cpe:2.3:a:sophos:safeguard_enterprise_client:6.00:*:*:*:*:*:*:* |
| sophos | safeguard_enterprise_client | 6.00.1 | cpe:2.3:a:sophos:safeguard_enterprise_client:6.00.1:*:*:*:*:*:*:* |
| sophos | safeguard_enterprise_client | 6.10 | cpe:2.3:a:sophos:safeguard_enterprise_client:6.10:*:*:*:*:*:*:* |
| sophos | safeguard_enterprise_client | 7.00 | cpe:2.3:a:sophos:safeguard_enterprise_client:7.00:*:*:*:*:*:*:* |
| sophos | safeguard_enterprise_client | 8.00 | cpe:2.3:a:sophos:safeguard_enterprise_client:8.00:*:*:*:*:*:*:* |
| sophos | safeguard_lan_crypt_client | 3.90.1 | cpe:2.3:a:sophos:safeguard_lan_crypt_client:3.90.1:ts:*:*:*:*:*:* |
Related
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
5.1%