The HP-UX /etc/securetty file must not have an extended ACL.

From HP-UX 11.31 Security Technical Implementation Guide

Associated with IA controls: ECLP-1

SV-26994r1_rule The HP-UX /etc/securetty file must not have an extended ACL.

Vulnerability discussion

File system extended ACLs provide access to files beyond what is allowed by the mode numbers of the files. Unauthorized modification of the /etc/securetty file could cause Denial of Service to authorized system consoles or add unauthorized system consoles.

Check content

Check the permissions of the file. # ls -lLd /etc/securetty If the permissions of the file or directory contains a '+', an extended ACL is present, and this is a finding.

Fix text

Remove the optional ACL from the file. # chacl -z /etc/securetty

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