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AIX must employ a deny-all, allow-by-exception firewall policy for allowing connections to other systems.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-219057AIX7-00-003143SV-219057r991589_ruleCCI-000366medium
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.
STIGDate
IBM AIX 7.x Security Technical Implementation Guide2026-06-15

Related Frameworks

2 mappings across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
MON-01Continuous Monitoring
1.00
MON-01.7File Integrity Monitoring (FIM)
1.00
CFG-02Secure Baseline Configurations
0.50
CFG-02.7Approved Configuration Deviations
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-12Session Termination
1.00
AC-16(1)Dynamic Attribute Association
1.00
AC-17(1)Monitoring and Control
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-24(1)Transmit Access Authorization Information
1.00
AC-25Reference Monitor
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.1
1.00
3.4.2
1.00
CCI2 mappings
CCI-000366
1.00
CCI-002080
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
PR.PS-01
1.00
PR.DS-10
0.50
PR.PSPlatform Security
0.50
PR.PS-05
0.50

Who does this work

10 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-219057r991589_chk)

From the command prompt, run the following commands to check if the "all traffic" filter rules, the predefined rule with Rule-ID 0, are defined to deny all packages: # lsfilt -v4 -n0 # lsfilt -v6 -n0 Rule 0: Rule action : deny Source Address : 0.0.0.0 Source Mask : 0.0.0.0 Destination Address : 0.0.0.0 Destination Mask : 0.0.0.0 Source Routing : yes Protocol : all Source Port : any 0 Destination Port : any 0 Scope : both Direction : both Logging control : no Fragment control : all packets Tunnel ID number : 0 Interface : all Auto-Generated : no Expiration Time : 0 Description : Default Rule Rule 0: Rule action : deny Source Address : :: Source Mask : 0 Destination Address : :: Destination Mask : 0 Source Routing : yes Protocol : all Source Port : any 0 Destination Port : any 0 Scope : both Direction : both Logging control : no Fragment control : all packets Tunnel ID number : 0 Interface : all Auto-Generated : no Expiration Time : 0 Description : Default Rule If any of the "all traffic" rules has "Rule action : permit", this is a finding.

Fix Text (F-20867r294778_fix)

From the command prompt, run the following commands to create and activate "ipsec_v4" and "ipsec_v6" devices: # mkdev -l ipsec -t 4 # mkdev -l ipsec -t 6 From the command prompt, run the following commands to change the "all traffic" rules to block all packages: # chfilt -a D -v 4 -n 0 # chfilt -a D -v 6 -n 0 Assume that the local host has IP address 10.10.10.10 and the remote host has IP address 11.11.11.11, run the following command to generate a user-defined filter rule that allow all IPv4 traffic between these 2 hosts: # genfilt -w B -v 4 -s 10.10.10.10 -p 0 -P 0 -o any -O any -m 255.255.255.255 -M 255.255.255.255 -i all -g Y -d 11.11.11.11 -c all -a P From the command prompt, run the following command to activate all the filter rules in the rule database: # mkfilt -u