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Check: GEN004360

VMware ESX 3 Server: GEN004360 (in version v1 r2)

Title

The alias file must be owned by root. (Cat II impact)

Discussion

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

Check Content

Find the aliases file on the system. Procedure: # find / -name aliases -depth -print Check the ownership of the alias file. Procedure: # ls -lL <alias location> If the file is not owned by root, this is a finding.

Fix Text

Change the owner of the /etc/mail/aliases file (or equivalent, such as /usr/lib/aliases) to root. Procedure: # chown root /etc/mail/aliases

Additional Identifiers

Rule ID: SV-831r2_rule

Vulnerability ID: V-831

Group Title: GEN004360

Expert Comments

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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