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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-26749r1_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 |
|---|---|
| UNIX SRG | 2013-03-26 |
Details
| Check Text ( C-27758r1_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-23999r1_fix) |
|---|
| Edit the /etc/ssh/ssh_config file and add or edit a Protocol configuration line that does not allow versions less than 2. |