The ability to use corners to disable the screen saver must be disabled.

From Apple OS X 10.8 (Mountain Lion) Workstation STIG

Associated with: CCI-000057

SV-65685r1_rule The ability to use corners to disable the screen saver must be disabled.

Vulnerability discussion

Check content

To check if any of the hot corners are configured to disable the screen saver run the following command for the logged in user: system_profiler SPConfigurationProfileDataType | grep wvous There should be 4 results (wvous-bl-corner, wvous-br-corner, wvous-tl-corner, wvous-tr-corner). If any of them are not defined to be "1", this is a finding.

Fix text

Open up System Preferences->Desktop&Screen Saver, and open Hot Corners. Make sure none of the corners are defined to "Disable Screen Saver". This can be enforced using a configuration profile or managed preferences.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.