5.3.10 Ensure certificate status checking for PKI authentication.


The operating system must implement certificate status checking for PKI authentication.


Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device.

Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification card and the DoD Common Access Card.

A privileged account is defined as an information system account with authorizations of a privileged user.

Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless.

This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management).


Configure the operating system to do certificate status checking for PKI authentication.
Modify all of the cert_policy lines in /etc/pam_pkcs11/pam_pkcs11.conf to include ocsp_on.
Note: Make sure there is a minimum of 3 cert_policy lines.
Example: vim /etc/pam_pkcs11/pam_pkcs11.conf
Add, uncomment or update the cert_policy lines to inlcude ocsp_on:

cert_policy = ca, ocsp_on, signature;
cert_policy = ca, ocsp_on, signature;
cert_policy = ca, ocsp_on, signature;


This Benchmark recommendation maps to:

Red Hat Enterprise Linux 7 Security Technical Implementation Guide:

Version 2, Release: 3 Benchmark Date: 26 Apr 2019

Vul ID: V-72433

Rule ID: SV-87057r5_rule

STIG ID: RHEL-07-041003

Severity: CAT II

See Also


Item Details


References: 800-53|SC-23(5)

Plugin: Unix

Control ID: a389a9d9574604ad87fbede85e8555934bccffc3d2adf061dd678a88ef0db623