The Ubuntu operating system must employ a FIPS 140-2 approved cryptographic hashing algorithms for all created and stored passwords.
An XCCDF Rule
Description
The Ubuntu operating system must use a FIPS-compliant hashing algorithm to securely store the password. The FIPS-compliant hashing algorithm parameters must be selected in order to harden the system against offline attacks.
- ID
- SV-219182r610963_rule
- Version
- UBTU-18-010110
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Configure the Ubuntu operating system to encrypt all stored passwords with a strong cryptographic hash.
Edit/modify the following line in the file "/etc/pam.d/common-password" file to include the sha512 option for pam_unix.so:
password [success=1 default=ignore] pam_unix.so obscure sha512
Edit/modify /etc/login.defs and set "ENCRYPT_METHOD sha512".