Finding ID | Version | Rule ID | IA Controls | Severity |
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V-257984 | RHEL-09-255040 | SV-257984r943034_rule | High |
Description |
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If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments. Satisfies: SRG-OS-000106-GPOS-00053, SRG-OS-000480-GPOS-00229, SRG-OS-000480-GPOS-00227 |
STIG | Date |
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Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2023-12-01 |
Check Text ( C-61725r943033_chk ) |
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Verify RHEL 9 remote access using SSH prevents logging on with a blank password with the following command: $ sudo grep -ir PermitEmptyPasswords /etc/ssh/sshd_config /etc/ssh/sshd_config.d/* PermitEmptyPassword no If the "PermitEmptyPassword" keyword is set to "yes", is missing, or is commented out, this is a finding. |
Fix Text (F-61649r925938_fix) |
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To configure the system to prevent SSH users from logging on with blank passwords edit the following line in "etc/ssh/sshd_config": PermitEmptyPasswords no Restart the SSH daemon for the settings to take effect: $ sudo systemctl restart sshd.service |