OL08-00-010020 - OL 8 must implement NIST FIPS-validated cryptography for the following: To provision digital signatures, to generate cryptographic hashes, and to protect data requiring data-at-rest protections in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

Information

Use of weak or untested encryption algorithms undermines the purposes of using 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.

OL 8 uses GRUB 2 as the default bootloader. Note that GRUB 2 command-line parameters are defined in the 'kernelopts' variable of the '/boot/grub2/grubenv' file for all kernel boot entries. The command 'fips-mode-setup' modifies the 'kernelopts' variable, which in turn updates all kernel boot entries.

The fips=1 kernel option needs to be added to the kernel command line during system installation so that key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. Users must also ensure the system has plenty of entropy during the installation process by moving the mouse around, or if no mouse is available, ensuring that many keystrokes are typed. The recommended amount of keystrokes is 256 and more. Less than 256 keystrokes may generate a non-unique key.

Satisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000125-GPOS-00065, SRG-OS-000250-GPOS-00093, SRG-OS-000393-GPOS-00173, SRG-OS-000394-GPOS-00174, SRG-OS-000423-GPOS-00187

Solution

Configure the operating system to implement DoD-approved encryption by following the steps below:

To enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place.

Enable FIPS mode after installation (not strict FIPS compliant) with the following command:

$ sudo fips-mode-setup --enable

Reboot the system for the changes to take effect.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Oracle_Linux_8_V1R2_STIG.zip

Item Details

Category: ACCESS CONTROL, MAINTENANCE, SYSTEM AND COMMUNICATIONS PROTECTION

References: 800-53|AC-17(2), 800-53|MA-4(6), 800-53|MA-4c., 800-53|SC-8, CAT|I, CCI|CCI-000068, CCI|CCI-000877, CCI|CCI-001453, CCI|CCI-002418, CCI|CCI-002890, CCI|CCI-003123, Rule-ID|SV-248524r818787_rule, STIG-ID|OL08-00-010020, Vuln-ID|V-248524

Plugin: Unix

Control ID: eda589fd4e80dd0891517ef81dac4d814395c2790f616d227c161621350ec658