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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-38985r1_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 |
|---|---|
| AIX 5.3 Security Technical Implementation Guide | 2012-05-25 |
Details
| Check Text ( C-37938r1_chk ) |
|---|
| Determine if the system's local firewall implements a deny-all, allow-by-exception policy. View the firewall (filter rules) with smit or lsfilt commands. # smitty ipsec4 # lsfilt If there is not a deny-all, allow-by-exception policy, this is a finding. |
| Fix Text (F-33194r1_fix) |
|---|
| Configure the system's local firewall to implement a deny-all, allow-by-exception policy. Firewall rules can be added and activated with SMIT ipsec4 or genfilt command. #smitty ipsec4 |