[GUACAMOLE-895] SSH is not working for diffie-hellman-group-exchange-sha1

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: 1.0.0
• Component/s: SSH
• Assignee: Unassigned
• Reporter: Edward Gao
• Created: 16/Oct/19 02:22
• Updated: 19/Nov/21 02:45
• Resolved: 19/Nov/21 02:45

Description

Hi, we are using the guacamole (1.0.0) ssh function. but it failed for a device. below is my analysis:

when it sending the DH request, the remote side got a FIN packet.

there are two packet results. one is from guacamole, another is from Jsch (another ssh tool) which using same kex method.

the different part is:

working version:

 

fnot working version: