Check: UBTU-20-010404
Canonical Ubuntu 20.04 LTS STIG:
UBTU-20-010404
(in versions v1 r12 through v1 r1)
Title
The Ubuntu operating system must encrypt all stored passwords with a FIPS 140-2 approved cryptographic hashing algorithm. (Cat II impact)
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 that the shadow password suite configuration is set to encrypt passwords with a FIPS 140-2 approved cryptographic hashing algorithm. Check the hashing algorithm that is being used to hash passwords with the following command: $ cat /etc/login.defs | grep -i encrypt_method ENCRYPT_METHOD SHA512 If "ENCRYPT_METHOD" does not equal SHA512 or greater, this is a finding.
Fix Text
Configure the Ubuntu operating system 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
Additional Identifiers
Rule ID: SV-238325r654150_rule
Vulnerability ID: V-238325
Group Title: SRG-OS-000120-GPOS-00061
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000803 |
The information system implements mechanisms for authentication to a cryptographic module that meet the requirements of applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance for such authentication. |
Controls
Number | Title |
---|---|
IA-7 |
Cryptographic Module Authentication |