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Check: GEN001810

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN001810 (in versions v1 r14 through v1 r10)

Title

Skeleton files must not have extended ACLs. (Cat II impact)

Discussion

If the skeleton files are not protected, unauthorized personnel could change user startup parameters and possibly jeopardize user files.

Check Content

Check skeleton files for extended ACLs. Procedure: #aclget /etc/security/.profile #aclget /etc/security/mkuser.sys Check if extended permissions are disabled. If extended permissions are not disabled, this is a finding.

Fix Text

Remove the extended ACL from the skeleton file(s) and disable extended permissions. #acledit /etc/security/.profile #acledit /etc/security/mkuser.sys

Additional Identifiers

Rule ID: SV-38736r1_rule

Vulnerability ID: V-22357

Group Title: GEN001810

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