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The SSH daemon must restrict login ability to specific users and/or groups.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22470 GEN005521 SV-26763r1_rule ECLP-1 Medium
Description
Restricting SSH logins to a limited group of users, such as system administrators, prevents password-guessing and other SSH attacks from reaching system accounts and other accounts not authorized for SSH access.
STIG Date
Solaris 10 X86 Security Technical Implementation Guide 2019-12-31

Details

Check Text ( C-27772r1_chk )
Check the SSH daemon configuration for the AllowGroups setting.
# grep -i AllowGroups /etc/ssh/sshd_config | grep -v '^#'
If no lines are returned, this is a finding.
Fix Text (F-24013r1_fix)
Edit the SSH daemon configuration and add an AllowGroups directive.