UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

The system must not send IPv4 ICMP redirects.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22417 GEN003610 SV-26632r1_rule ECSC-1 Medium
Description
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table that could reveal portions of the network topology.
STIG Date
SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE 2015-10-01

Details

Check Text ( C-27669r1_chk )
Verify the system does not send IPv4 ICMP redirect messages.

Procedure:
# ndd /dev/ip ip_send_redirects

If the result is not 0, this is a finding.
Fix Text (F-23875r1_fix)
Configure the system to not send IPv4 ICMP redirect messages.

Procedure:
# ndd -set /dev/ip ip_send_redirects 0

Also add this command to a system startup script.