STIGUI
V-261473CAT I — High severitySV-261473r996824_rule

FIPS 140-2/140-3 mode must be enabled on SLEM 5.

Rule version SLEM-05-671010 · STIG v1 · 2026-08-20

Discussion

Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. SLEM 5 must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

Check

Verify SLEM 5 is running in FIPS mode by running the following command.

     > cat /proc/sys/crypto/fips_enabled 
     1

If the value returned is "0", nothing is returned, or the file does not exist, this is a finding.

Fix

To configure SLEM 5 to run in FIPS mode, add "fips=1" to the kernel parameter during SLEM 5 install.

Enabling FIPS mode on a preexisting system involves a number of modifications to SLEM 5. Refer to section 9.1, "Crypto Officer Guidance", of the following document for installation guidance:

http://csrc.nist.gov/groups/STM/cmvp/documents/140-1/140sp/140sp2435.pdf

Identifiers

Group ID
V-261473
Group title
SRG-OS-000396-GPOS-00176
Rule ID
SV-261473r996824_rule
Check ID
C-65202r996284_chk
Fix ID
F-65110r996823_fix