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VULNERABILITIES

CVE-2018-6852 Details

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 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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://community.sophos.com/kb/en-us/131934 CVEPatchVendor Advisory
http://seclists.org/fulldisclosure/2018/Jul/20 CVEMailing ListThird Party Advisory
https://labs.nettitude.com/blog/cve-2018-6851-to-cve-2018-6857-sophos-privilege-escalation-vulnerabilities/ CVEExploitTechnical DescriptionThird Party Advisory
https://community.sophos.com/kb/en-us/131934 [email protected]PatchVendor Advisory
http://seclists.org/fulldisclosure/2018/Jul/20 [email protected]Mailing ListThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]

Affected Products

ProductVersions
sophos safeguard easy device encryption client
6.00
6.10
7.00

CPE

  • cpe:2.3:a:sophos:safeguard_easy_device_encryption_client:6.00:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_easy_device_encryption_client:6.10:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_easy_device_encryption_client:7.00:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
sophos safeguard enterprise client
5.60.3 vs-nfd
6.00
6.00.1
6.10
7.00

CPE

  • cpe:2.3:a:sophos:safeguard_enterprise_client:5.60.3:vs-nfd:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_enterprise_client:6.00:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_enterprise_client:6.00.1:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_enterprise_client:6.10:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_enterprise_client:7.00:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_enterprise_client:8.00:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
sophos safeguard lan crypt client
3.90.1 ts
3.90.2
3.95.1
3.95.1 ts

CPE

  • cpe:2.3:a:sophos:safeguard_lan_crypt_client:3.90.1:ts:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_lan_crypt_client:3.90.2:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_lan_crypt_client:3.95.1:*:*:*:*:*:*:*
  • cpe:2.3:a:sophos:safeguard_lan_crypt_client:3.95.1:ts:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-6852
NVD Published Date:
Jul 9, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-6852 Details - Not Deferred