RHEL 9 /etc/shadow file must have mode 0000 to prevent unauthorized access.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-257934 | RHEL-09-232270 | SV-257934r991589_rule | CCI-000366 | medium |
| Description | ||||
| The "/etc/shadow" file contains the list of local system accounts and stores password hashes. Protection of this file is critical for system security. Failure to give ownership of this file to root provides the designated owner with access to sensitive information, which could weaken the system security posture. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2025-05-14 | |||
Related Frameworks
4 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
CM-6
1.00
- DISA · 2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1712 mappings
3.4.1
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
3.4.2
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-000366
1.00
- DISA · 2 · disa_xccdf · related
Details
Check Text (C-257934r991589_chk)
Verify that the "/etc/shadow" file has mode "0000" with the following command:
$ sudo stat -c "%a %n" /etc/shadow
0 /etc/shadow
If a value of "0" is not returned, this is a finding.
Fix Text (F-61599r925788_fix)
Change the mode of the file "/etc/shadow" to "0000" by running the following command:
$ sudo chmod 0000 /etc/shadow