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The system must not be configured for network bridging.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22421 | GEN003619 | SV-37639r1_rule | ECSC-1 | Medium |
| Description |
|---|
| Some systems have the ability to bridge or switch frames (link-layer forwarding) between multiple interfaces. This can be useful in a variety of situations but, if enabled when not needed, has the potential to bypass network partitioning and security. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 5 Security Technical Implementation Guide | 2016-07-22 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-31674r1_fix) |
|---|
| Configure the system to not use bridging. # rmmod bridge Edit /etc/modprobe.conf and add a line such as "install bridge /bin/false" to prevent the loading of the bridge module. |