Check: TSS0-OS-000100
IBM z/OS TSS STIG:
TSS0-OS-000100
(in versions v9 r2 through v7 r1)
Title
The IBM z/OS Policy Agent must be configured to deny-all, allow-by-exception firewall policy for allowing connections to other systems. (Cat II impact)
Discussion
Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections.
Check Content
Examine the policy agent policy statements. If it can be determined that the policy agent employs a deny-all, allow-by exception firewall policy for allowing connections to other systems this is not a finding.
Fix Text
Develop a policy application and policy agent to employ a deny-all, allow-by-exception firewall policy for allowing connections to other systems.
Additional Identifiers
Rule ID: SV-224006r991593_rule
Vulnerability ID: V-224006
Group Title: SRG-OS-000480-GPOS-00232
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000366 |
Implement the security configuration settings. |
| CCI-002080 |
The organization employs either an allow-all, deny-by-exception or a deny-all, permit-by-exception policy for allowing organization-defined information systems to connect to external information systems. |