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The system must not have IP tunnels configured.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22547 | GEN007820 | SV-38929r1_rule | ECSC-1 | Medium |
| Description |
|---|
| IP tunneling mechanisms can be used to bypass network filtering. |
| STIG | Date |
|---|---|
| AIX 5.3 Security Technical Implementation Guide | 2012-05-25 |
Details
| Check Text ( C-37914r1_chk ) |
|---|
| Determine if any IP tunnels are configured on the system. Check for IP tunnels. # lstun -a # ifconfig -a | grep -e gre -e gif -e cti -e sit If any tunnels are listed, this is a finding. |
| Fix Text (F-33171r1_fix) |
|---|
| Remove the configuration for any IP tunnels from the system. Remove tunnels listed with the lstun command. #rmtun -t Remove the tunneled IP interfaces. #ifconfig #rmdev -Rdl |