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The system must not respond to ICMP broadcast netmask requests.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-216371 | SOL-11.1-050040 | SV-216371r505927_rule | Low |
| Description |
|---|
| By determining the netmasks of various computers in your network, an attacker can better map your subnet structure and infer trust relationships. |
| STIG | Date |
|---|---|
| Solaris 11 SPARC Security Technical Implementation Guide | 2020-09-04 |
Details
| Check Text ( C-17607r371201_chk ) |
|---|
| Determine if the response to address mask broadcast is disabled. # ipadm show-prop -p _respond_to_address_mask_broadcast -co current ip If the output of this command is not "0", this is a finding. |
| Fix Text (F-17605r371202_fix) |
|---|
| The Network Management profile is required. Disable responses to address mask broadcast. # pfexec ipadm set-prop -p _respond_to_address_mask_broadcast=0 ip |