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The system must not have IP forwarding for IPv6 enabled, unless the system is an IPv6 router.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22491 | GEN005610 | SV-26811r1_rule | ECSC-1 | Medium |
| Description |
|---|
| If the system is configured for IP forwarding and is not a designated router, it could be used to bypass network security by providing a path for communication not filtered by network devices. |
| STIG | Date |
|---|---|
| HP-UX 11.31 Security Technical Implementation Guide | 2016-12-20 |
Details
| Check Text ( C-27799r1_chk ) |
|---|
| Check if the system is configured for IPv6 forwarding. # ndd -get /dev/ip6 ip6_forwarding If ip6_forwarding is set to 1, this is a finding. |
| Fix Text (F-24054r1_fix) |
|---|
| Disable IPv6 forwarding: # ndd -set /dev/ip6 ip6_forwarding 0 Edit /etc/rc.config.d/nddconf: TRANSPORT_NAME[index]=ip6 NDD_NAME[index]=ip6_forwarding NDD_VALUE[index]=0 Where: index is the next available integer value of the nddconf file. n is a number: either 1 to turn the feature ON or 0 to turn it OFF. |