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The operating system must employ a deny-all, allow-by-exception firewall policy for allowing connections to other systems.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-56581 | SRG-OS-000480-GPOS-00231 | SV-70841r1_rule | Medium |
| Description |
|---|
| Failure to restrict network connectivity only to authorized systems permits inbound connections from malicious systems. It also permits outbound connections that may facilitate exfiltration of DoD data. |
| STIG | Date |
|---|---|
| General Purpose Operating System SRG | 2014-12-17 |
Details
| Check Text ( C-57153r1_chk ) |
|---|
| Verify the operating system employs a deny-all, allow-by-exception firewall policy for allowing connections to other systems. If it does not, this is a finding. |
| Fix Text (F-61479r1_fix) |
|---|
| Configure the operating system to employ a deny-all, allow-by-exception firewall policy for allowing connections to other systems. |