Files executed through a mail aliases file must not have extended ACLs.

From SOLARIS 10 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN004430

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-26696r1_rule Files executed through a mail aliases file must not have extended ACLs.

Vulnerability 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. # chmod A- [file referenced from aliases]

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