Changes are coming to https://stigviewer.com.
Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey
The system must not respond to Internet Control Message Protocol (ICMP) timestamp requests sent to a broadcast address.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22411 | GEN003604 | SV-35026r1_rule | ECSC-1 | Medium |
| Description |
|---|
| The processing of ICMP timestamp requests increases the attack surface of the system. Responding to broadcast ICMP timestamp requests facilitates network mapping and provides a vector for amplification attacks. |
| STIG | Date |
|---|---|
| HP-UX 11.31 Security Technical Implementation Guide | 2018-09-14 |
Details
| Check Text ( C-36504r1_chk ) |
|---|
| Verify the system does not respond to ICMP timestamp requests set to broadcast addresses. # ndd -get /dev/ip ip_respond_to_timestamp_broadcast If the result is greater than 0, this is a finding. |
| Fix Text (F-31861r1_fix) |
|---|
| Configure the system to not respond to ICMP timestamp requests sent to broadcast addresses. # ndd -set /dev/ip ip_respond_to_timestamp_broadcast 0 Edit /etc/rc.config.d/nddconf and add/set: TRANSPORT_NAME[x]=ip NDD_NAME[x]=ip_respond_to_timestamp_broadcast NDD_VALUE[x]=0 |