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V-270739

CAT II (Medium)

Ubuntu 24.04 LTS must encrypt all stored passwords with a FIPS 140-3 approved cryptographic hashing algorithm.

Rule ID

SV-270739r1067124_rule

STIG

Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide

Version

V1R5

CCIs

CCI-000803

Discussion

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.

Check Content

Verify the shadow password suite configuration is set to encrypt passwords with a FIPS 140-3 approved cryptographic hashing algorithm with the following command: 
 
$ grep -i ENCRYPT_METHOD /etc/login.defs 
ENCRYPT_METHOD SHA512 
 
If "ENCRYPT_METHOD" does not equal SHA512 or greater, this is a finding.

Fix Text

Configure Ubuntu 24.04 LTS to encrypt all stored passwords.  
 
Edit/modify the following line in the "/etc/login.defs" file and set "ENCRYPT_METHOD" to SHA512: 
 
ENCRYPT_METHOD SHA512