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The system must not respond to Internet Control Message Protocol [ICMPv4] echoes sent to a broadcast address.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-51309 | OSX8-00-01190 | SV-65519r1_rule | Medium |
| Description |
|---|
| The system must not respond to Internet Control Message Protocol [ICMPv4] echoes sent to a broadcast address. |
| STIG | Date |
|---|---|
| Apple OS X 10.8 (Mountain Lion) Workstation STIG | 2015-02-10 |
Details
| Check Text ( C-53657r1_chk ) |
|---|
| To check if the system is configured to respond to ICMP echoes, run the following command: sudo sysctl net.inet.icmp.bmcastecho | awk '{ print $NF }' If the value is not set to "1", this is a finding. |
| Fix Text (F-56109r1_fix) |
|---|
| To disable ICMP responses to broadcast traffic add the following line to /etc/sysctl.conf: net.inet.icmp.bmcastecho=1 |