SaferVPN 4.2.5 for Windows suffers from a SYSTEM privilege escalation vulnerability in its "SaferVPN.Service" service. The "SaferVPN.Service" service executes "openvpn.exe" using OpenVPN config files located within the current user's %LOCALAPPDATA%\SaferVPN\OvpnConfig directory. An authenticated attacker may modify these configuration files to specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Link | Tags |
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https://github.com/VerSprite/research/blob/master/advisories/VS-2018-024.md | third party advisory |