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For PKI-based authentication, NixOS must implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-268179ANIX-00-002060SV-268179r1131166_ruleCCI-004068medium
Description
Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer authorized (users with revoked certificates).
STIGDate
Anduril NixOS Security Technical Implementation Guide2025-08-19

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-10.2PKI-Based Authentication
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (59) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3Access Enforcement
1.00
AC-3(4)Discretionary Access Control
1.00

+49 more (top 10 by confidence shown)

CCI1 mapping
CCI-004068
1.00

Details

Check Text (C-268179r1131166_chk)

Verify NixOS, for PKI-based authentication, uses local revocation data when unable to access the network to obtain it remotely with the following command: $ grep cert_policy /etc/pam_pkcs11/pam_pkcs11.conf cert_policy = ca,signature,ocsp_on, crl_auto; If the cert_policy does not contain the options in the example output, this is a finding.

Fix Text (F-72006r1131165_fix)

Configure NixOS, for PKI-based authentication, to use local revocation data when unable to access the network to obtain it remotely. Add the following Nix code to the NixOS Configuration, usually located in /etc/nixos/configuration.nix or /etc/nixos/flake.nix: security.pam.p11.enable = true; environment.etc."pam_pkcs11/pam_pkcs11.conf".text = '' cert_policy = ca,signature,ocsp_on, crl_auto; ''; Rebuild and switch to the new NixOS configuration: $ sudo nixos-rebuild switch