The system's NFS export configuration must not have the sec option set to none (or equivalent); additionally, the default authentication must not to be set to none.

From SOLARIS 10 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECAN-1

Associated with: CCI-000366

SV-40306r1_rule The system's NFS export configuration must not have the sec option set to none (or equivalent); additionally, the default authentication must not to be set to none.

Vulnerability discussion

If sec=none on Solaris, all NFS requests are mapped to an unknown/common user instead of being processed according to the provided UID.

Check content

Perform the following on NFS servers: # grep "^default" /etc/nfssec.conf Check to ensure the second column does not equal 0. This would indicate the default is set to none. Perform the following to check currently exported file systems. # more /etc/dfs/dfstab If the option sec=none is set on any of the exported file systems, this is a finding.

Fix text

Edit the /etc/dfs/dfstab file and add the sec=XXX option to the share line as an option. XXX must be a valid option for the system other than none.

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