The SSH daemon must be configured for IP filtering.

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-40279r1_rule The SSH daemon must be configured for IP filtering.

Vulnerability discussion

The SSH daemon must be configured for IP filtering to provide a layered defense against connection attempts from unauthorized addresses.

Check content

Check the TCP wrappers configuration files to determine if SSHD is configured to use TCP wrappers. Procedure: # egrep '^[^#:]*(ALL|sshd)' /etc/hosts.deny # egrep '^[^#:]*(ALL|sshd)' /etc/hosts.allow If neither of the hosts.deny or hosts.allow files exist, this is a finding. If no entries are returned, the TCP wrappers are not configured for SSHD, this is a finding.

Fix text

Add appropriate IP restrictions for SSH to the /etc/hosts.deny and/or /etc/hosts.allow files.

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