Amazon Linux 2023 must implement DOD-approved encryption in the OpenSSL package.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-274053SRG-OS-000250-GPOS-00093AZLX-23-001260SV-274053r1120147_rule2025-07-151
Description
Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash.
ℹ️ Check
Verify Amazon Linux 2023 is configured so that the OpenSSL library uses only ciphers employing FIPS 140-2/140-3 approved algorithms with the following command: $ sudo grep -i opensslcnf.config /etc/pki/tls/openssl.cnf .include = /etc/crypto-policies/back-ends/opensslcnf.config If the "opensslcnf.config" is not defined in the "/etc/pki/tls/openssl.cnf" file, this is a finding.
✔️ Fix
Configure Amazon Linux 2023 OpenSSL library to use the system wide cryptographic policy. Edit the "/etc/pki/tls/openssl.cnf" and add or modify the following line: .include = /etc/crypto-policies/back-ends/opensslcnf.config