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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-223568	ACF2-OS-000330	SV-223568r1001134_rule		Medium

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

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

STIG	Date
IBM z/OS ACF2 Security Technical Implementation Guide	2024-06-24

Details

Check Text ( C-25241r810995_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 found, this is a finding.

Fix Text (F-25229r1001133_fix)
Define all Keys/Certificates to ICSF or the security database. Remove any .kdb and .jks files.