[Forensics] Marshal in the Middle

flagged

@iVirus said:
The impact of the work done by Diffie-Hellman is absolutely Not Ephemeral :wink:

To those still stuck, review this ^ hint.

@TazWake said:
I still havent managed to get anywhere with this.

Is there anyone out there who has solved it and doesn’t mind giving me a tip or two about why I dont seem to be able to get wireshark to decrypt the vital SSL traffic?

I can see the cleartext suspicious traffic on the next stream, and then a huge amount of traffic which looks like normal web browsing. But nothing I do seems to be able to assign the private key to the traffic I want it to decrypt.

Any and all help really, really welcomed! :smile:

Same here any hint would be much appriciated

For me, the best tip I can give is dont try to read the streams - nothing I did make that work. However, there are other things you can do in WireShark to get it to dump data to a folder, which you can then analyse.

make sure you have an up-to-date wireshark

I’ve found the sensitive data from the stream. What’s the next step?

Can anyone PM me about this challenge? I don’t want to spoil !! and wan’t to ask somethings!

I’m stuck on it, got the DNS tunnel thing - But how to extract with what tools, not sure what the next step is here.

Anyone?

Hi all, I’ve got something but I don’t want to spoil, anyone can PM me? Thx!

Just spent a lot of time on this one just to figure out Wireshark 2.4.6 and 3.0.0 on OS X neither would decrypt correctly. 2.6.7 worked fine with exact same settings as other 2 versions so I don’t think it was misconfiguration. 2.6.6 in Kali worked fine too, didn’t try any other versions. Once decrypt worked, the flag was obvious in expected format.

ya I have figured it was an issue I almost wondered why it was not working and I kind of figured the bundle was needed to be modified to get the decryption working once I noticed I wasn’t getting decryption I just put it aside I am glad you cleared up which version worked I will do a reinstall of that version later

Finally found it! FYI it works with Wireshark 3.0.0 on Win10

I suggest this video to understand how to decrypt SSL

Finally I got it :smiley: and this worked with the last version of Wireshark on Win10 also in Kali linux. check out very well advance preferences on Wireshark, if you need any help PM… Cheers.

Got it. If you need help PM.
Cheers from Portugal :+1:

I found something similar to the flag and I can not respond. Help.

Bad API request, invalid api_option
why is so!! I am geeting problem!! Anyone here to give me small nudge !!

Video from Heichou helped a lot, thanks!
I tried a different approach from the Wireshark Wiki, which did not work for me.

As soon as you got that part, follow the stream!

Great challenge - learnt a lot!!!

Type your comment> @zeroes said:

Hope this is ok, just a great read on the Wireshark tool here, oh the whitty ways to use it: https://sharkfesteurope.wireshark.org/assets/presentations17eu/15.pdf

Excellent document, i learn some cool things!! Feel free to PM me for help.