Fortinet Discovers TorGuard's DD-WRT Router Setup Tool for Windows DLL PreLoading Vulnerability
Fortinet's FortiGuard Labs has discovered a DLL preloading vulnerability in TorGuard VPN DD-WRT Setup for Windows.
TorGuard VPN DD-WRT Setup for Windows is the custom setup for TorGuard DD-WRT Routers used to protect a user's identity and personal privacy using their anonymous VPN, proxy & email encryption services. It allows users to anonymize all their online activities.
TorGuard VPN DD-WRT Setup for Windows is susceptible to a DLL preloading vulnerability. The issue occurs when the application looks to load a DLL for execution and an attacker provides a malicious DLL to use instead. The application generally follows a specific search path to locate the DLL. The vulnerability can be exploited by a simple file write (or potentially an over-write) which results in a foreign DLL running under the context of the application.
Users should apply the solution provided by TorGuard.
Fortinet reported the vulnerability to TorGuard on May 14, 2018
TorGuard confirmed the vulnerability on May 15, 2018.
TorGuard patched the vulnerability on May 15, 2018.