The system must ignore ICMP redirect messages.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-216374 | SOL-11.1-050070 | SV-216374r959010_rule | CCI-000366 | low |
| Description | ||||
| Ignoring ICMP redirect messages reduces the likelihood of denial of service attacks. | ||||
| STIG | Date | |||
| Solaris 11 SPARC Security Technical Implementation Guide | 2025-05-05 | |||
Details
Check Text (C-216374r959010_chk)
Determine if ICMP redirect messages are ignored.
# ipadm show-prop -p _ignore_redirect -co current ipv4
# ipadm show-prop -p _ignore_redirect -co current ipv6
If the output of all commands is not "1", this is a finding.
Fix Text (F-17608r371211_fix)
The Network Management profile is required.
Disable ignore redirects for IPv4 and IPv6.
# pfexec ipadm set-prop -p _ignore_redirect=1 ipv4
# pfexec ipadm set-prop -p _ignore_redirect=1 ipv6