COMMAND
Registry Permissions
SYSTEMS AFFECTED
- Microsoft Windows NT 4.0 Workstation
- Microsoft Windows NT 4.0 Server
- Microsoft Windows NT 4.0 Server, Enterprise Edition
- Microsoft Windows NT 4.0 Server, Terminal Server Edition
PROBLEM
The following is based on a Security Bulletin from the Microsoft.
This vulnerability involves three sets of registry keys whose
default permissions are too permissive. These permissions could
allow a malicious user who could interactively log onto a target
machine to:
- Cause code to run in a local system context
- Cause code to run the next time another user logged onto the
same machine
- Disable the security protection for a previously-reported
vulnerability
These three key sets are not related to each other except by the
fact that their permissions should be tightened. A tool is
available that will reset all of the affected keys to the
correct default value.
SOLUTION
Windows 2000 is not affected by this vulnerability. Patch
availability:
- Intel: http://www.microsoft.com/downloads/release.asp?ReleaseID=19172
- Alpha: http://www.microsoft.com/downloads/release.asp?ReleaseID=19173