Lavasoft Web Companion (also known as Ad-Aware WebCompanion) versions 8.9.0.1091 through 12.1.3.1037 installs the DCIService.exe service with an unquoted service path vulnerability. An attacker with write access to the file system could potentially execute arbitrary code with elevated privileges by placing a malicious executable in the unquoted path.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: