Title

Event Viewer must be protected from unauthorized modification and deletion. (Cat II impact)

Discussion

Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys in order to make access decisions regarding the modification or deletion of audit tools.

Check Content

Verify the permissions on Event Viewer only allow TrustedInstaller permissions to change or modify. If any groups or accounts other than TrustedInstaller have Full control or Modify, this is a finding. Navigate to "%SystemRoot%\SYSTEM32". View the permissions on "Eventvwr.exe". The default permissions below satisfy this requirement. TrustedInstaller - Full Control Administrators, SYSTEM, Users, ALL APPLICATION PACKAGES - Read & Execute

Fix Text

Ensure only TrustedInstaller has permissions to change or modify Event Viewer ("%SystemRoot%\SYSTEM32\Eventvwr.exe). The default permissions below satisfy this requirement. TrustedInstaller - Full Control Administrators, SYSTEM, Users, ALL APPLICATION PACKAGES - Read & Execute

Additional Identifiers

Rule ID:

Vulnerability ID: V-57721

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.