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IBM z/OS for PKI-based authentication must use ICSF or the ESM to store keys.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-223883TSS0-ES-000100SV-223883r998485_ruleCCI-000186medium
Description
If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure. The cornerstone of the PKI is the private key used to encrypt or digitally sign information. If the private key is stolen, this will lead to the compromise of the authentication and non-repudiation gained through PKI because the attacker can use the private key to digitally sign documents and pretend to be the authorized user. Both the holders of a digital certificate and the issuing authority must protect the computers, storage devices, or whatever they use to keep the private keys.
STIGDate
IBM z/OS TSS Security Technical Implementation Guide2026-06-15

Related Frameworks

2 mappings across 3 frameworks
SCF0 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.

CRY-09Cryptographic Key Management
1.00
IAC-10.2PKI-Based Authentication
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (57) 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-10Concurrent Session Control
1.00
AC-12Session Termination
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(4)Discretionary Access Control
1.00

+47 more (top 10 by confidence shown)

CCI2 mappings
CCI-000186
1.00
CCI-004910
1.00

Details

Check Text (C-223883r998485_chk)

Any keys or Certificates must be managed in ICSF or the external security manager and not in UNIX files. From the ISPF Command Shell enter: OMVS enter find / -name *.kdb and Find / -name *.jks If any files are present, this is a finding. OMVS enter find / -name *.kdb and Find / -name *.jks If any files are present, this is a finding.

Fix Text (F-25544r811041_fix)

Define all Keys/Certificates to ICSF or the security database. Remove all .kdb and .jks key files.