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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-37613r1_rule | ECSC-1 | Medium |
| Description |
|---|
| IP tunneling mechanisms can be used to bypass network filtering. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2016-06-01 |
Details
| Check Text ( C-36809r1_chk ) |
|---|
| Check for any IP tunnels. # ip tun list # ip -6 tun list If any tunnels are listed, this is a finding. |
| Fix Text (F-31648r1_fix) |
|---|
| Remove the tunnels. # ip tun del Edit system startup scripts to prevent tunnel creation on startup. |