STIGUI
V-223568CAT II — Medium severitySV-223568r1226026_rule

IBM z/OS must use ICSF or SAF Key Rings for key management.

Rule version ACF2-OS-000330 · STIG v9 · 2026-09-01

Discussion

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.

Satisfies: SRG-OS-000067-GPOS-00035, SRG-OS-000068-GPOS-00036

Check

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 found, this is a finding.

Fix

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

Identifiers

Group ID
V-223568
Group title
SRG-OS-000067-GPOS-00035
Rule ID
SV-223568r1226026_rule
Check ID
C-25241r810995_chk
Fix ID
F-25229r1001133_fix