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Check: GEN005240

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN005240 (in versions v1 r14 through v1 r10)

Title

The .Xauthority utility must only permit access to authorized hosts. (Cat II impact)

Discussion

If unauthorized clients are permitted access to the X server, a user's X session may be compromised.

Check Content

Check the X Window system access is limited to authorized clients. Procedure: # xauth xauth> list Ask the SA if the clients listed are authorized. If any are not, this is a finding.

Fix Text

Remove unauthorized clients from the xauth configuration. # xauth remove <display name>

Additional Identifiers

Rule ID: SV-12518r2_rule

Vulnerability ID: V-12017

Group Title: GEN005240

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

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

Number	Title
AC-6	Least Privilege