Title

CA-TSS must protect memory and privileged program dumps in accordance with proper security requirements. (Cat II impact)

Discussion

Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system.

Check Content

From the ISPF Command Screen, enter: TSS WHOHAS IBMFAC(IEAABD) If the IEAABD. resource and/or generic equivalent is defined with no access and all access logged, this is not a finding. If the IEAABD.DMPAUTH. resource and/or generic equivalent is defined with READ access limited to authorized users, this is not a finding. If the IEAABD.DMPAUTH. resource and/or generic equivalent UPDATE or greater access is restricted to only systems personnel and all access is logged, this is not a finding. If the IEAABD.DMPAKEY resource and/or generic equivalent is defined and all access is restricted to systems personnel and that all access is logged, this is not a finding.

Fix Text

Memory and privileged program dump resources are provided via resources in the FACILITY resource class. Ensure that the following are properly specified in the ESM. (Note: The resources and/or resource prefixes identified below are examples of a possible installation. The actual resources and/or resource prefixes are determined when the product is actually installed on a system through the product's installation guide and can be site specific.) The access requirements for memory and privileged program dump resources are listed below. Ensure the guidelines for the resource type, resources, and/or generic equivalent are followed. When protecting the facilities for dumps lists via the FACILITY resource class, ensure that the following items are in effect: IEAABD. IEAABD.DMPAUTH. IEAABD.DMPAKEY. If DEFPROT is specified in the IBMFAC RDT the following command examples are not required. To prevent access to these resources, the program dump resources and/or generic equivalent are protected using the following command. Example: TSS ADDTO(deptacid) IBMFAC(IEAABD.) IEAABD.DMPAUTH. READ access is limited to authorized users that have a valid job duties requirement for access. UPDATE access will be restricted to system programming personnel and access will be logged. Example: TSS PERMIT(authusers) IBMFAC(IEAABD.DMPAUTH.) ACCESS(READ) TSS PERMIT(syspaudt) IBMFAC(IEAABD.DMPAUTH.) ACCESS(UPDATE) ACTION(AUDIT) IEAABD.DMPAKEY. access will be restricted to system programming personnel and access will be logged. Example: TSS PERMIT(syspaudt) IBMFAC(IEAABD.DMPAKEY.) ACCESS(READ) ACTION(AUDIT)

Additional Identifiers

Rule ID: SV-223916r1130285_rule

Vulnerability ID: V-223916

Group Title: SRG-OS-000080-GPOS-00048

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.