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Check: GEN004430

VMware ESX 3 Server: GEN004430 (in version v1 r2)

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. # ls -lL [file referenced from aliases] If the permissions include a "+", the file has an extended ACL and this is a finding.

Fix Text

Remove the extended ACL from the file(s) referenced from the aliases file.

Additional Identifiers

Rule ID: SV-26110r1_rule

Vulnerability ID: V-22441

Group Title: GEN004430

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