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.
References
Link | Resource |
---|---|
https://labs.nettitude.com/blog/cve-2018-6851-to-cve-2018-6857-sophos-privilege-escalation-vulnerabilities/ | Exploit Technical Description Third Party Advisory |
https://community.sophos.com/kb/en-us/131934 | Patch Vendor Advisory |
http://seclists.org/fulldisclosure/2018/Jul/20 | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
|
Information
Published : 2018-07-09 11:29
Updated : 2019-10-02 17:03
NVD link : CVE-2018-6852
Mitre link : CVE-2018-6852
JSON object : View
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
Products Affected
sophos
- safeguard_easy_device_encryption_client
- safeguard_enterprise_client
- safeguard_lan_crypt_client