The /etc/shells (or equivalent) file must exist.

From VMware ESXi Server 5.0 Security Technical Implementation Guide

Associated with: CCI-000366

SV-51091r1_rule The /etc/shells (or equivalent) file must exist.

Vulnerability discussion

The shells file (or equivalent) lists approved default shells. It helps provide layered defense to the security approach by ensuring users cannot change their default shell to an unauthorized shell that may not be secure.

Check content

Disable lock down mode. Enable the ESXi Shell. = /etc/shells Execute the following command(s): # ls -l /etc/shells If /etc/shells does not exist, this is a finding. Re-enable lock down mode.

Fix text

Disable lock down mode. Enable the ESXi Shell. = /etc/shells Execute the following command(s): # > /etc/shells Re-enable lock down mode.

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