The system must be configured with a default gateway for IPv4 if the system uses IPv4, unless the system is a router.

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-30079r1_rule The system must be configured with a default gateway for IPv4 if the system uses IPv4, unless the system is a router.

Vulnerability discussion

If a system has no default gateway defined, the system is at increased risk of man-in-the-middle, monitoring, and Denial of Service attacks.

Check content

Check the system for an IPv4 default route. Procedure: # netstat -r |grep default If a default route is not defined, this is a finding.

Fix text

Create or edit /etc/defaultrouter to contain the default gateway address. Procedure (for a default gateway of 192.168.3.1): # echo "192.168.3.1" > /etc/defaultrouter Restart the system for the setting to take effect.

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