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The SSH daemon must be configured to only use the SSHv2 protocol.


Overview

Finding ID Version Rule ID IA Controls Severity
V-220108 GEN005500 SV-220108r854460_rule High
Description
SSHv1 is not a DoD-approved protocol and has many well-known vulnerability exploits. Exploits of the SSH daemon could provide immediate root access to the system.
STIG Date
Solaris 10 X86 Security Technical Implementation Guide 2022-09-07

Details

Check Text ( C-21817r490075_chk )
Check the SSH daemon configuration for allowed protocol versions.

# grep -i protocol /etc/ssh/sshd_config | grep -v '^#'

If the variables Protocol 2,1 or Protocol 1 are defined on a line without a leading comment, this is a finding.
Fix Text (F-21816r490076_fix)
Edit the configuration file and modify the Protocol line to look like:

Protocol 2

Reload sshd:
kill -HUP