IBM z/OS ACF2 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000080-GPOS-00048
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SRG-OS-000104-GPOS-00051
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SRG-OS-000066-GPOS-00034
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IBM z/OS must not use Expired Digital Certificates.
Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate not already explicitly trusted. A trust anchor is an authoritative entit...Rule Medium Severity -
SRG-OS-000066-GPOS-00034
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SRG-OS-000001-GPOS-00001
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SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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The number of ACF2 users granted the special privilege OPERATOR must be kept to a strictly controlled minimum.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule Low Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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IBM z/OS Sensitive Utility Controls must be properly defined and protected.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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CA-ACF2 NJE GSO record value must indicate validation options that apply to jobs submitted through a network job entry subsystem (JES2, JES3, RSCS).
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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CA-ACF2 must protect Memory and privileged program dumps in accordance with proper security requirements.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit access to SYSTEM DUMP data sets to appropriate authorized users.
Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, an...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 allocate access to system user catalogs must be properly protected.
Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, an...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit access to System page data sets (i.e., PLPA, COMMON, and LOCALx) to system programmers.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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IBM z/OS must protect dynamic lists in accordance with proper security requirements.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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IBM z/OS Libraries included in the system REXXLIB concatenation must be properly protected.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit Write or greater access to SYS1.UADS To system programmers only and read and update access must be limited to system programmer personnel and/or security personnel.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 access to the System Master Catalog must be properly protected.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit Write or greater access to SYS1.NUCLEUS to system programmers only.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit Write or greater access to SYS1.LPALIB to system programmers only.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit Write or greater access to Libraries containing EXIT modules to system programmers only.
Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, an...Rule High Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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CA-ACF2 must limit Write or greater access to all LPA libraries to system programmers only.
To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be...Rule High Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
Group
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