Check: AOSX-09-000055
Apple OS X 10.9 Workstation STIG:
AOSX-09-000055
(in version v1 r2)
Title
The operating system must enforce requirements for remote connections to the information system. (Cat II impact)
Discussion
The Screen Sharing feature allows remote users to view or control the desktop of the current user. A malicious user can take advantage of Screen Sharing to gain full access to the system remotely, either with stolen credentials or by guessing the username and password. Disabling Screen Sharing mitigates this risk.
Check Content
To check if screen sharing is disabled, run the following command: sudo /usr/libexec/PlistBuddy -c 'print com.apple.screensharing:Disabled' /var/db/launchd.db/com.apple.launchd/overrides.plist If the returned value isn't 'true' or doesn't exist, this is a finding.
Fix Text
To disable screen sharing, run the following command: sudo defaults write /private/var/db/launchd.db/com.apple.launchd/overrides.plist 'com.apple.screensharing' -dict Disabled -bool true
Additional Identifiers
Rule ID: SV-72695r1_rule
Vulnerability ID: V-58265
Group Title:
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |