I am authenticating to my radius server using EAP-TLS v1.3 protocol. As TLSv1.3 mandates, all the certificates used are Elliptic curve (secp256-r1). However, the SSL tab of Wireshark supports only RSA Keys for now.
I want to decrypt the traffic on my supplicant (peer). Is there a way that can be done? (In a somewhat similar manner to Master Shared Secret method used for web browsers).
Any other program that can help me analyze the traffic?
Thanks in advance and apologies if I am missing something here. I am using wpa_supplicant v2.9 on peer.
Related
I have a couple questions.
If I were to use TLS1.0->1.3 Client-Side and never use SSLv2 or v3, would there be any impacts on TCP Client Handshake Compatibility?
As in, would there ever be a server that wouldn't support this change that would require me to use SSLv2/v3?
I guess what i'm asking is if TLS is backwards compatible which servers that use SSLv2/v3 or do I not understand SSL/TLS properly?
Also other way around, if I was running an OS that had no support for TLS, would I at some point end up with Protocol Issues when Handshaking an SSL Stream?
I have a Cisco UCM 10.5 running and would like to know how I can decrypt SIP over TLS traffic between phone endpoints and the UCM.
I haven't been able to find a guide that works.
Can you use Wireshark to find out the cipher used. One way to find out is to look at the Server Hello message: see the attached image: ).
If it is not related to Diffie-Hellman (has "DHE" in the cipher suite), then you can decrypt it with server private key by using Wireshark.
I have a C++ application that has a SSL/TLS communication with its own server and i don't have any access to that server. I'm trying to find out what is it sending from my PC to the server.
I tried burp and fiddler as man-in-middle but it didn't work. The application does not support Proxy so i tried routing the traffic using proxifier to burp and fiddler but it didn't work.
So I came up with these articles https://isc.sans.edu/forums/diary/Psst+Your+Browser+Knows+All+Your+Secrets+/16415 and http://ask.wireshark.org/questions/4229/follow-ssl-stream-using-master-key-and-session-id
I just need to know , How I can find Master-key and Session-ID to decrypt SSL/TLS trafic.
It depends on the TLS cipher suite being used. If the ciphersuite uses forward secrecy (DHE) you cannot decrypt the stream. If it uses RSA encryption then you need at least the private key of the server. If it also uses client authentication then you would also need the private key of the client. if it uses symmetric encryption you need the symmetric (master) key from either one of them.
But if you do have a C++ application, I would simply add logging to that application (at the lowest level).
You can use following alrternates on a x86 windows
STRACE - http://blogs.msdn.com/b/emmanubo/archive/2007/06/04/introduction-to-strace-httpreplay-support-tools.aspx
SOCKTRC if this app is on windows checkout
http://blogs.msdn.com/b/emmanubo/archive/2007/08/03/socktrc-tool.aspx
HTTPREPLAY -
generally used for browsers but here can be used to view the responses in the UI
I have a PCAP file that was given to me for a Forensics Challenge. The PCAP has encrypted traffic using TLS Version 1. I have looked into a BEAST attack but there are no tools to do this. Is there any way using just the packets I have in the PCAP file to decrypt this traffic in Wireshark without the private key? Can I get the private key from the certificate exchange in anyways or the master secret log or something? I could not find any tutorials online that do not involve having access to the private key. Any help is appreciated.
UPDATE:
My later research revealed that version 1 of TLS did have vulnerabilities and that it was possible to do but I would have needed access to the actual host as well not just the PCAP of its traffic.
If you have the master secret, you might be able to do something.
Have a look at the "Using the (Pre)-Master-Secret" section on the SSL page of the Wireshark wiki. You'll need a reasonably recent version of Wireshark, which adds the ability to set the master secret (instead of expecting the server's private key). This should also help for Ephemeral Diffie-Hellman cipher suites.
More details in this question on the Wireshark Q&A site.
Would like to write SSL Socket client server application on the same machine (both server and clients are running same machine). Should I use SSL certificate file (.pem file ) or not required.
Just I want encrypt the data before sending via socket.
Can we encrypt the data without .pem file?
Please advice me.
-Bala
SSL has two major steps:
check the identity of the peer, e.g. make sure you talk to the right one and not an imposter (e.g. man in the middle). This is done with certificates.
encrypt the connection, so that anybody listening on the wire cannot understand what's going on. Obviously encryption helps nothing if somebody is actively listening on the wire, because you failed in step#1. In this case you have no end-to-end encryption but an end-to-imposter and imposter-to-end encryption :)
Considering these arguments: do you still want to skip checking the certificate?
If you want it is doable, just look for anonymous authentication, e.g. ADH or aNULL with openssl.