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Check: GEN004430

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN004430 (in versions v1 r14 through v1 r10)

Title

Files executed through a mail aliases file must not have extended ACLs. (Cat II impact)

Discussion

Excessive permissions on files executed through a mail alias file could result in modification by an unauthorized user, execution of malicious code, and/or system compromise.

Check Content

Examine the contents of the /etc/mail/aliases file. For each file referenced, check the permissions of the file. #aclget [File referenced from alias] Check if extended permissions are disabled. If extended permissions are not disabled, this is a finding.

Fix Text

Remove the extended ACL from the file(s) referenced from the aliases file and disable extended permissions. #acledit [File referenced from aliases]

Additional Identifiers

Rule ID: SV-38810r1_rule

Vulnerability ID: V-22441

Group Title: GEN004430

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