Check: GEN004390
VMware ESX 3 Server:
GEN004390
(in version v1 r2)
Title
The alias file must not have an extended ACL. (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
Check the permissions of the /etc/mail/aliases file. # ls -lL /etc/mail/aliases If the permissions include a "+", the file has an extended ACL, this is a finding.
Fix Text
Remove the extended ACL from the alias file.
Additional Identifiers
Rule ID: SV-26108r1_rule
Vulnerability ID: V-22439
Group Title: GEN004390
Expert Comments
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CCIs
CCIs tied to check.
| Number | Definition |
|---|---|
| CCI-000225 |
Employ the principle of least privilege, allowing only authorized accesses for users (or processes acting on behalf of users) which are necessary to accomplish assigned organizational tasks. |
Controls
Controls tied to check. These are derived from the CCIs shown above.
| Number | Title |
|---|---|
| AC-6 |
Least Privilege |