Check: UBTU-16-010160
Canonical Ubuntu STIG:
UBTU-16-010160
(in versions v1 r2 through v1 r1)
Title
The Ubuntu operating system must employ a FIPS 140-2 approved cryptographic hashing algorithms for all stored passwords. (Cat II impact)
Discussion
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
Check Content
Verify the shadow password suite configuration is set to encrypt interactive user passwords using a strong cryptographic hash with the following command: Confirm that the interactive user account passwords are using a strong password 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
Configure the Ubuntu operating system to encrypt all stored passwords with a strong cryptographic hash. Lock all interactive user accounts not using SHA-512 hashing until the passwords can be regenerated.
Additional Identifiers
Rule ID: SV-90141r1_rule
Vulnerability ID: V-75461
Group Title:
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000196 |
The information system, for password-based authentication, stores only cryptographically-protected passwords. |
| 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. |