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Check: GEN001820

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN001820 (in versions v1 r14 through v1 r10)

Title

All skeleton files and directories (typically in /etc/skel) must be owned by root or bin. (Cat II impact)

Discussion

If the skeleton files are not protected, unauthorized personnel could change user startup parameters and possibly jeopardize user files. Failure to give ownership of sensitive files or utilities to root or bin provides the designated owner and unauthorized users with the potential to access sensitive information or change the system configuration which could weaken the system's security posture.

Check Content

Check skeleton files ownership. Procedure: # ls -l /etc/security/.profile /etc/security/mkuser.sys If a skeleton file is not owned by root or bin, this is a finding.

Fix Text

Change the ownership of skeleton files with incorrect mode. # chown root /etc/security/.profile /etc/security/mkuser.sys

Additional Identifiers

Rule ID: SV-38737r1_rule

Vulnerability ID: V-11984

Group Title: GEN001820

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