SLEM 5 must employ FIPS 140-2/140-3-approved cryptographic hashing algorithms for system authentication.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-261391	SLEM-05-611080	SV-261391r996598_rule		High

Description
The system must use a strong hashing algorithm to store the password. The system must use a sufficient number of hashing rounds to ensure the required level of entropy. Passwords need to 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.

STIG	Date
SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide	2024-06-04

Details

Check Text ( C-65120r996596_chk )
Verify SLEM 5 shadow password suite is configured to encrypt interactive user passwords using FIPS 140-2/140-3-approved cryptographic hash 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 logon and are not evaluated. If any interactive user password hash does not begin with "$6", this is a finding.

Check Text ( C-65120r996596_chk )

Verify SLEM 5 shadow password suite is configured to encrypt interactive user passwords using FIPS 140-2/140-3-approved cryptographic hash 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 logon and are not evaluated.

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

Fix Text (F-65028r996597_fix)
Configure SLEM 5 to encrypt all stored passwords with FIPS 140-2/140-3-approved cryptographic hash. Add or modify the following line in the "/etc/login.defs" file: ENCRYPT_METHOD SHA512 Lock all interactive user accounts not using SHA512 hashing until the passwords can be regenerated.