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V-281221

CAT I (High)

RHEL 10 must employ FIPS 140-3-approved cryptographic hashing algorithms for all stored passwords.

Rule ID

SV-281221r1166615_rule

STIG

Red Hat Enterprise Linux 10 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-004062 CCI-000803

Discussion

The system must use a strong hashing algorithm to store the password. Passwords must be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. Satisfies: SRG-OS-000073-GPOS-00041, SRG-OS-000120-GPOS-00061

Check Content

Verify RHEL 10 employs FIPS 140-3-approved cryptographic hashing algorithms for all stored passwords for interactive user accounts with the following command:

$ sudo cut -d: -f2 /etc/shadow
$6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/

Password hashes "!" or "*" indicate inactive accounts not available for login and are not evaluated.

If any interactive user password hash does not begin with "$6", this is a finding.

Fix Text

Configure RHEL 10 to employ FIPS 140-3-approved cryptographic hashing algorithms for all stored passwords.

Lock all interactive user accounts not using SHA-512 hashing until the passwords can be regenerated with SHA-512.