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 0x8020601C. By crafting an input buffer we can control the execution path to the point where a global variable 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.
References
| Link | Resource |
|---|---|
| http://seclists.org/fulldisclosure/2018/Jul/20 | Mailing List Third Party Advisory |
| https://community.sophos.com/kb/en-us/131934 | Patch Vendor Advisory |
| https://labs.nettitude.com/blog/cve-2018-6851-to-cve-2018-6857-sophos-privilege-escalation-vulnerabilities/ | Exploit Technical Description Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2018-07-09 18:29
Updated : 2024-02-04 19:46
NVD link : CVE-2018-6856
Mitre link : CVE-2018-6856
CVE.ORG link : CVE-2018-6856
JSON object : View
Products Affected
sophos
- safeguard_lan_crypt_client
- safeguard_enterprise_client
- safeguard_easy_device_encryption_client
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer