Expired Digital Certificates must not be used.

SV-83843r1_rule Expired Digital Certificates must not be used.

Vulnerability discussion

The longer and more often a key is used, the more susceptible it is to loss or discovery. This weakens the assurance provided to a relying Party that the unique binding between a key and its named subscriber is valid. Therefore, it is important that certificates are periodically refreshed. This is in accordance with DoD requirement. Expired Certificate must not be in use.

Check content

NOTE: The procedures in this checklist item presume the domain being reviewed is running all releases of z/OS, and use the ACP as the certificate store. If the domain being review is not a production system and is only used for test and development, this Self-Signed Certificates review can be skipped. Refer to the following report produced by the ACF2 Data Collection Checklist: TSSCMDS.RPT(CERTRPT) If no certificate information is found, there is no finding. NOTE: Certificates are only valid when their Status is TRUST. Therefore, you may ignore certificates with the NOTRUST status during the following checks. Check the expiration for each certificate with a status of TRUST. If the expiration date has passed this is a finding.

Fix text

If the certificate is a user or device certificate with a status of TRUST, follow procedures to obtain a new certificate or re-key certificate. If it is an expired CA certificate remove it.

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