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The SUSE operating system must employ FIPS 140-2-approved cryptographic hashing algorithms for all stored passwords.


Finding ID Version Rule ID IA Controls Severity
V-234887 SLES-15-020180 SV-234887r877397_rule Medium
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. Satisfies: SRG-OS-000073-GPOS-00041, SRG-OS-000120-GPOS-00061
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide 2022-12-07


Check Text ( C-38075r618930_chk )
Verify the SUSE operating system requires the shadow password suite configuration be set to encrypt interactive user passwords using a strong cryptographic hash.

Check that the interactive user account passwords are using a strong password hash with the following command:

> sudo cut -d: -f2 /etc/shadow


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-38038r618931_fix)
Configure the SUSE operating system to encrypt all stored passwords with a strong cryptographic hash.

Edit/modify the following line in the "/etc/login.defs" file and set "ENCRYPT_METHOD" to have a value of "SHA512".


Lock all interactive user accounts not using SHA512 hashing until the passwords can be regenerated.