The /etc/securetty file must have mode 0600 or less permissive.

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Part of GEN000000-LNX00660

Associated with IA controls: ECLP-1

Associated with: CCI-000225 CCI-000366

SV-37342r3_rule The /etc/securetty file must have mode 0600 or less permissive.

Vulnerability discussion

The securetty file contains the list of terminals permitting direct root logins. It must be protected from unauthorized modification.

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Fix text

Change the mode of the /etc/securetty file to 0600. Procedure: # chmod 0600 /etc/securetty

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