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 | 
|---|---|
| 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)
                                
                                
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Information
                Published : 2018-07-09 11:29
Updated : 2019-10-02 17:03
NVD link : CVE-2018-6856
Mitre link : CVE-2018-6856
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
 


