RHEL 9 must be configured so that user and group account administration utilities are configured to store only encrypted representations of passwords.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258116 | RHEL-09-611135 | SV-258116r1045240_rule | CCI-004062 | medium |
| Description | ||||
| 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. Passwords that are encrypted with a weak algorithm are no more protected than if they are kept in plain text. This setting ensures user and group account administration utilities are configured to store only encrypted representations of passwords. Additionally, the "crypt_style" configuration option ensures the use of a strong hashing algorithm that makes password cracking attacks more difficult. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2025-05-14 | |||
Related Frameworks
6 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
IA-5(1)
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1714 mappings
3.5.10
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.5.7
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.5.8
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.5.9
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-004062
1.00
- DISA · 2 · disa_xccdf · related
Details
Check Text (C-258116r1045240_chk)
Verify the user and group account administration utilities are configured to store only encrypted representations of passwords with the following command:
$ grep crypt_style /etc/libuser.conf
crypt_style = sha512
If the "crypt_style" variable is not set to "sha512", is not in the defaults section, is commented out, or does not exist, this is a finding.
Fix Text (F-61781r1014895_fix)
Configure RHEL 9 to use the SHA-512 algorithm for password hashing.
Add or change the following line in the "[defaults]" section of "/etc/libuser.conf" file:
crypt_style = sha512