The nosuid option must be configured in the /etc/rmmount.conf file.

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECPA-1

SV-12532r2_rule The nosuid option must be configured in the /etc/rmmount.conf file.

Vulnerability discussion

The rmmount.conf file controls the mounting of removable media on a Solaris system. Removable media is not to be trusted with privileged access, and therefore the filesystems must be mounted with the nosuid option, which prevents any executables with the setuid bit set on this filesystem from running with owner privileges.

Check content

# grep mount /etc/rmmount.conf Confirm the nosuid option is configured. mount * hsgs udgs ufs -o nosuid If the nosuid option is not configured in the /etc/rmmount.conf file, this is a finding.

Fix text

Edit /etc/rmmount.conf and add the nosuid mount option to the configuration.

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