Navigate

Check: GEN004380

VMware ESX 3 Server: GEN004380 (in version v1 r2)

Title

The alias file must have mode 0644 or less permissive. (Cat II impact)

Discussion

Excessive permissions on the aliases file may permit unauthorized modification. If the alias file is modified by an unauthorized user, they may modify the file to run malicious code or redirect email.

Check Content

Find the aliases file on the system. Procedure: # find / -name aliases -depth -print Check the mode of the alias file. Procedure: # ls -lL <alias location> If the alias file has a mode more permissive than 0644, this is a finding.

Fix Text

Change the mode of the /etc/mail/aliases file (or equivalent, such as /usr/lib/aliases) to 0644. Procedure: # chmod 0644 /etc/aliases

Additional Identifiers

Rule ID: SV-832r2_rule

Vulnerability ID: V-832

Group Title: GEN004380

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