sshnet / sshnet/SSH.NET

2024.1.0 problem with Globalscape EFT and AES-GCM algorithms

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Dominant language
C#
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Description

When I try to connect with Ssh.net 2024.1.0 to Globalscape Eft 8.2.1.30, get following error:

An established connection was aborted by the server. 
   at Renci.SshNet.Session.WaitOnHandle(WaitHandle waitHandle, TimeSpan timeout)
   at Renci.SshNet.Session.Connect()
   at Renci.SshNet.BaseClient.CreateAndConnectSession()
   at Renci.SshNet.BaseClient.Connect()

But, with 2024.0.0 version, there is no problem. I supposed there's a MAC algorithm problem.

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Research direction

Reproduce the connection failure against Globalscape EFT 8.2.1.30 using SSH.NET 2024.1.0, then compare it with 2024.0.0. Start at Session.Connect and the reported WaitOnHandle, BaseClient.CreateAndConnectSession, and BaseClient.Connect entries; done means identifying the changed MAC or AES-GCM behavior and confirming compatibility with a regression test.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
networking, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
32/100

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