UCF STIG Viewer Logo
Changes are coming to https://stigviewer.com. Take our survey to help us understand your usage and how we can better serve you in the future.
Take Survey

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


Overview

Finding ID Version Rule ID IA Controls Severity
V-22456 GEN005501 SV-37820r1_rule DCPP-1 Medium
Description
SSHv1 is not a DoD-approved protocol and has many well-known vulnerability exploits. Exploits of the SSH client could provide access to the system with the privileges of the user running the client.
STIG Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide 2013-04-10

Details

Check Text ( C-37022r1_chk )
Check the SSH client configuration for allowed protocol versions.
# grep -i protocol /etc/ssh/ssh_config | grep -v '^#'
If the returned protocol configuration allows versions less than 2, this is a finding.

Fix Text (F-32289r1_fix)
Edit the /etc/ssh/ssh_config file and add or edit a "Protocol" configuration line not allowing versions less than 2.