[jira] [Closed] (GUACAMOLE-895) SSH is not working for diffie-hellman-group-exchange-sha1

["Mike Jumper (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GUACAMOLE-895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mike Jumper closed GUACAMOLE-895.
---------------------------------
    Resolution: Cannot Reproduce

Closing this for now as I am not able to reproduce this failure, nor does it seem like it would be tied to Guacamole itself. If this is a bug, it's likely a bug in libssh2 and may well have been resolved already in more recent libssh2 releases.

When possible, I recommend retesting against newer versions of the relevant dependencies (or against the latest Docker images) and checking whether the behavior recurs. If you are able to reliably reproduce the issue with the latest, definitely feel free to reopen.

> SSH is not working for diffie-hellman-group-exchange-sha1
> ---------------------------------------------------------
>
>                 Key: GUACAMOLE-895
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-895
>             Project: Guacamole
>          Issue Type: Bug
>          Components: SSH
>    Affects Versions: 1.0.0
>            Reporter: Edward Gao
>            Priority: Minor
>         Attachments: 510624185.log, 853327523.log, image-2019-10-16-10-19-05-829.png, image-2019-10-16-10-21-21-802.png, image-2019-10-16-10-22-04-535.png, image-2019-10-17-09-14-43-369.png, sshissue.pcapng, sshok.pcapng
>
>
> 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.
> !image-2019-10-16-10-19-05-829.png!
> 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:
> !image-2019-10-16-10-21-21-802.png!
>  
> fnot working version:
> !image-2019-10-16-10-22-04-535.png!



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