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The system must not process Internet Control Message Protocol (ICMP) timestamp requests.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22409 | GEN003602 M6 | SV-38200r1_rule | ECSC-1 | Low |
| Description |
|---|
| The processing of ICMP timestamp requests increases the attack surface of the system. |
| STIG | Date |
|---|---|
| MAC OSX 10.6 Workstation Security Technical Implementation Guide Draft | 2013-01-10 |
Details
| Check Text ( C-37657r1_chk ) |
|---|
| Open a terminal session and enter the following command to view the timestamp. sysctl -a | grep net.inet.icmp.timestamp If the value of net.inet.icmp.timestamp is not set to "1", this is a finding. |
| Fix Text (F-32898r1_fix) |
|---|
| Open a terminal session and edit the /etc/sysctl.conf file and add the following line. net.inet.icmp.timestamp=1 NOTE: If the sysctl.conf file does not exist use the following command to create one. touch /etc/sysctl.conf |