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The system must not send IPv6 ICMP redirects.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22551 | GEN007880 | SV-26938r1_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 revealing portions of the network topology. |
| STIG | Date |
|---|---|
| SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2015-10-01 |
Details
| Check Text ( C-27886r1_chk ) |
|---|
| Verify the system is configured to not send IPv6 ICMP redirect messages. # ndd /dev/ip6 ip6_send_redirects If the returned value is not 0, this is a finding. |
| Fix Text (F-24183r1_fix) |
|---|
| Configure the system to not send IPv6 ICMP redirect messages. # ndd -set /dev/ip6 ip6_send_redirects 0 Also, add this command to a system startup script. |