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The system's local firewall must implement a deny-all, allow-by-exception policy.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22583 | GEN008540 | SV-26977r1_rule | ECSC-1 | Medium |
| Description |
|---|
| A local firewall protects the system from exposing unnecessary or undocumented network services to the local enclave. If a system within the enclave is compromised, firewall protection on an individual system continues to protect it from attack. |
| STIG | Date |
|---|---|
| HP-UX 11.31 Security Technical Implementation Guide | 2018-09-14 |
Details
| Check Text ( C-36794r2_chk ) |
|---|
| Check the firewall rules for a default deny rule. # ipfstat -i | sed -e 's/^[ \t]*//' | tr '\011' ' ' | tr -s ' ' | grep -v "^#" | grep "block" An example of a default deny rule: block in log quick on ne3 from any to any If there is no default deny rule, this is a finding. |
| Fix Text (F-32172r1_fix) |
|---|
| Edit /etc/opt/ipf/ipf.conf and add a default deny rule and restart the ipfilter service. # /sbin/init.d/ipfboot stop # /sbin/init.d/ipfboot start |