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Install the dracut-fips-aesni Package

An XCCDF Rule

Description

To enable FIPS on system that support the Advanced Encryption Standard (AES) or New Instructions (AES-NI) engine, the system requires that the dracut-fips-aesni package be installed. The dracut-fips-aesni package can be installed with the following command: 

$ sudo yum install dracut-fips-aesni

warning alert: Warning

The system needs to be rebooted for these changes to take effect.

warning alert: Regulatory Warning

System Crypto Modules must be provided by a vendor that undergoes FIPS-140 certifications. FIPS-140 is applicable to all Federal agencies that use cryptographic-based security systems to protect sensitive information in computer and telecommunication systems (including voice systems) as defined in Section 5131 of the Information Technology Management Reform Act of 1996, Public Law 104-106. This standard shall be used in designing and implementing cryptographic modules that Federal departments and agencies operate or are operated for them under contract. See https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.140-2.pdf To meet this, the system has to have cryptographic software provided by a vendor that has undergone this certification. This means providing documentation, test results, design information, and independent third party review by an accredited lab. While open source software is capable of meeting this, it does not meet FIPS-140 unless the vendor submits to this process.

Rationale

Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

ID
xccdf_org.ssgproject.content_rule_package_dracut-fips-aesni_installed
Severity
Medium
References
Updated



Remediation - Anaconda Pre-Install Instructions


package --add=dracut-fips-aesni

Remediation - Ansible

- name: Check if system supports AES-NI
  command: grep -q -m1 -o aes /proc/cpuinfo
  failed_when: aesni_supported.rc > 1
  register: aesni_supported
  check_mode: false
  when:

Remediation - Shell Script

# Remediation is applicable only in certain platforms
if ( [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ] && ! ( [ "${container:-}" == "bwrap-osbuild" ] ) ) && { [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; }; then

if grep -q -m1 -o aes /proc/cpuinfo; then
    if ! rpm -q --quiet "dracut-fips-aesni" ; then
        yum install -y "dracut-fips-aesni"