Local Privilege Escalation Vulnerability in Sophos SafeGuard Products
CVE-2018-6857

7.8HIGH

Key Information:

Vendor

Sophos
Status
Safeguard Lan Crypt Client
Safeguard Enterprise Client
Safeguard Easy Device Encryption Client
Vendor
CVE Published:
9 July 2018

What is CVE-2018-6857?

The vulnerability in Sophos SafeGuard products allows an attacker to escalate privileges locally by exploiting a flaw in the input handling of IOCTL 0x802022E0. By crafting a specific input buffer, attackers can manipulate the execution flow to modify the SEP_TOKEN_PRIVILEGES structure of the Token object within the exploit process. This can grant SE_DEBUG_NAME privileges, enabling the attacker to interface with higher-privileged SYSTEM processes and execute arbitrary code within their security context, potentially compromising system integrity.

References

https://community.sophos.com/kb/en-us/131934
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http://seclists.org/fulldisclosure/2018/Jul/20
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https://labs.nettitude.com/blog/cve-2018-6851-to-cve-2018...
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CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.