MongoDB must, for public key-based authentication, implement a local cache of revocation data to support path discovery and validation.

Public key cryptography is a valid authentication mechanism for individuals, machines, and devices. For PKI solutions, status information for certification paths includes certificate revocation lists or certificate status protocol responses. For PIV cards, certificate validation involves the construction and verification of a certification path to the Common Policy Root trust anchor, which includes certificate policy processing. Implementing a local cache of revocation data to support path discovery and validation also supports system availability in situations where organizations are unable to access revocation information via the network.

Check the MongoDB configuration file (default location /etc/mongod.conf) for a key named "setParameter".

Examples shown below:

setParameter: ocspEnabled: true

If this key "setParameter" and the subkey "ocspEnabled: true" are not found, this is a finding.

Edit the MongoDB configuration file (default location /etc/mongod.conf) and add "setParameter" and its subkey "ocspEnabled" as shown below.

setParameter: ocspEnabled: true

Refer to: https://www.mongodb.com/docs/v8.0/core/security-transport-encryption/#ocsp--online-certificate-status-protocol-