The system must not respond to ICMP timestamp requests.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| low | V-216132 | SRG-OS-000480 | SOL-11.1-050020 | SV-216132r959010_rule | 2026-02-19 | 3 |
Description
By accurately determining the system's clock state, an attacker can more effectively attack certain time-based pseudorandom number generators (PRNGs) and the authentication systems that rely on them.
ℹ️ Check
Determine if ICMP time stamp responses are disabled.
# ipadm show-prop -p _respond_to_timestamp -co current ip
If the output of both commands is not "0", this is a finding.
✔️ Fix
The Network Management profile is required.
Disable source respond to timestamp.
# pfexec ipadm set-prop -p _respond_to_timestamp=0 ip