<<< Date Index >>>     <<< Thread Index >>>

Local Privilege Escalation Vulnerabilities in Lotus Notes Client



Local Privilege Escalation Through Default ntmulti.exe File Permissions

Unprivileged users can execute arbitrary programs that run with the privileges 
of the LocalSystem account by replacing the Multi-user Cleanup Service 
executable with arbitrary executables. This vulnerability exists because the 
default file permissions assigned during installation to ntmulti.exe (the 
executable for the Multi-user Cleanup Service) allow unprivileged, interactive
users to replace ntmulti.exe with any file.

Because the Multi-user Cleanup Service is a Windows service running with 
LocalSystem privileges, unprivileged users can easily elevate their privileges.