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Check: GEN004930

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN004930 (in versions v1 r14 through v1 r10)

Title

The ftpusers file must be group-owned by bin, sys, or system. (Cat II impact)

Discussion

If the ftpusers file is not group-owned by a system group, an unauthorized user may modify the file to allow unauthorized accounts to use FTP.

Check Content

Check the group ownership of the ftpusers file. Procedure: # ls -lL /etc/ftpusers If the file is not group-owned by bin, sys, or system, this is a finding.

Fix Text

Change the group owner of the ftpusers file. Procedure: # chgrp system /etc/ftpusers

Additional Identifiers

Rule ID: SV-39180r1_rule

Vulnerability ID: V-22444

Group Title: GEN004930

Expert Comments

Expert comments are only available to logged-in users.

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