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RHEL 9 must implement a FIPS 140-3-compliant systemwide cryptographic policy.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-258241RHEL-09-215105SV-258241r1184293_ruleCCI-002450high
Description
Centralized cryptographic policies simplify applying secure ciphers across an operating system and the applications that run on that operating system. Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. Satisfies: SRG-OS-000396-GPOS-00176, SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174
STIGDate
Red Hat Enterprise Linux 9 Security Technical Implementation Guide2026-02-05

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (9) 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.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
CRY-01.1Alternate Physical Protection
1.00
CRY-03Transmission Confidentiality
1.00
CRY-04Transmission Integrity
1.00
CRY-05Encrypting Data At Rest
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
CRY-01.2Export-Controlled Cryptography
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (29) 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-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-3Access Enforcement
1.00
AU-9(3)Cryptographic Protection
1.00
CM-5(6)Limit Library Privileges
1.00
CM-6Configuration Settings
1.00
CM-7Least Functionality
1.00
IA-2(8)Access to Accounts — Replay Resistant
1.00
IA-2(9)Network Access to Non-privileged Accounts — Replay Resistant
1.00
IA-3(1)Cryptographic Bidirectional Authentication
1.00
IA-5(1)Password-based Authentication
1.00

+19 more (top 10 by confidence shown)

NIST 800-1710 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.

3.13.11
1.00
CCI1 mapping
CCI-002450
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) 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.

PR.DS-01
1.00
PR.DS-02
1.00
PR.DS-10
1.00

Who does this work

8 NICE work roles and 7 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-258241r1184293_chk)

Verify RHEL 9 is set to use a FIPS 140-3-compliant systemwide cryptographic policy with the following command: $ update-crypto-policies --show FIPS If the systemwide crypto policy is not set to "FIPS", this is a finding. Note: If subpolicies have been configured, they could be listed in a colon-separated list starting with "FIPS" as follows FIPS:<SUBPOLICY-NAME>. This is not a finding. Note: Subpolicies like AD-SUPPORT must be configured according to the latest guidance from the operating system vendor. Verify the current minimum crypto-policy configuration with the following commands: $ grep -E 'rsa_size|hash' /etc/crypto-policies/state/CURRENT.pol hash = SHA2-256 SHA2-384 SHA2-512 SHA2-224 SHA3-256 SHA3-384 SHA3-512 SHAKE-256 min_rsa_size = 2048 If the "hash" values do not include at least the following FIPS 140-3-compliant algorithms "SHA2-256 SHA2-384 SHA2-512 SHA2-224 SHA3-256 SHA3-384 SHA3-512 SHAKE-256", this is a finding. If there are algorithms that include "SHA1" or a hash value less than "224" this is a finding. If the "min_rsa_size" is not set to a value of at least "2048", this is a finding. If these commands do not return any output, this is a finding.

Fix Text (F-61906r1106301_fix)

Configure RHEL 9 to use a FIPS 140-3-compliant systemwide cryptographic policy. Create a subpolicy for enhancements to the base systemwide crypto-policy by creating the file /etc/crypto-policies/policies/modules/STIG.pmod with the following content: # Define ciphers and MACs for OpenSSH and libssh cipher@SSH=AES-256-GCM AES-256-CTR AES-128-GCM AES-128-CTR mac@SSH=HMAC-SHA2-512 HMAC-SHA2-256 Apply the policy enhancements to the FIPS systemwide cryptographic policy level with the following command: $ sudo update-crypto-policies --set FIPS:STIG Note: If additional subpolicies are being employed, they must be added to the update-crypto-policies command. To make the cryptographic settings effective for already running services and applications, restart the system: $ sudo reboot