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Check: GEN004370 M6

MACOSX 10.6: GEN004370 M6 (in version v1 r3)

Title

The aliases file must be group-owned by wheel. (Cat II impact)

Discussion

If the alias file is not group-owned by a system group, an unauthorized user may modify the file to add aliases to run malicious code or redirect email.

Check Content

Open a terminal session and use the following command to verify the group ownership of the /etc/aliases file. ls -lL /etc/aliases If the /etc/aliases file is not group owned by wheel, this is a finding.

Fix Text

Open a terminal session and enter the following command to set the group. chgrp wheel /etc/aliases

Additional Identifiers

Rule ID: SV-38128r1_rule

Vulnerability ID: V-22438

Group Title:

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