I want to log everything firefox send to a server, down to every exact byte so I can reproduce it in a python client. So my idea was to make a quick and dirty hack :
run a openssl s_server,
make firefox connect to localhost by adding a line in my /etc/hosts.
This shouldn't have taken more than 5 seconds to setup, run, remove.
My issue is on the firefox side. First, it doesn't allow me to add a security exception. Second, even when I add one in about:preferences#advanced > Certificates > View certificates > Servers, it changes nothing and show me the error SEC_ERROR_UNKNOWN_ISSUER anyway.
How do I make firefox ignore the certificate error?
Is there another quick and easy way to log SSL traffic?
The easiest way I found was to use firefox's SSLKEYLOGFILE environment variable and configure wireshark to use this file to decrypt the HTTP requests.
This is all explained here:
https://jimshaver.net/2015/02/11/decrypting-tls-browser-traffic-with-wireshark-the-easy-way/
However, care must be taken to clear the cache for the website so that firefox actually send the requests and don't use the cached result.
Related
I just setup a custom domain for an AWS API Gateway and set up CNAME entries in Google Domains to redirect to my API Gateway. After maybe 30 minutes of waiting I was able to use Chrome to do a simple GET request to my custom domain that properly forwarded to my API Gateway. I tested in Firefox and it worked fine too.
About 3-4 hours later I came back and tried making the same call using Python requests and it worked the first 3 times then failed.
SSLError: HTTPSConnectionPool(host='ids.references.app', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError("hostname '<my_custom_domain>' doesn't match '*.execute-api.us-east-2.amazonaws.com'")))
At first I thought this was a requests problem, but then I opened up Firefox and it didn't work as well. I tried Edge and the call worked. Then I went back to Python and it worked for a bit, then stopped working. I went back to Firefox and it no longer worked. Then I tried Edge and it no longer worked. Sprinkled in there I've tried Chrome and it has worked every time since it started working. (this order of events is from memory and may be slightly off).
Is this a known issue with updating DNS entries that you get some randomness when things first start until the DNS changes have fully propagated. How would I go about even tracking where the error is occurring? I think that's the most frustrating thing about this, it all seems like magic and there's no obvious point where you get something like server 1.2.3.4 says that cert_1 doesn't go with cert_2 and then later you see something like server 4.5.6.7 says cert_2 is all good (so it works). Would I need to install curl for Windows (Is is possible to make a cURL request and get the route that is taken (similar to traceroute)). Would this even matter though? What if curl was like Chrome, it always worked? Does requests have this functionality (bonus points if someone can show a requests solution)? What about Firefox or Chrome? Or could I use something like wireshark (yikes) that could somehow observe the whole system?
I'm using requests 2.25.1 and Python 3.8.5 on Windows 10 and I believe the latest versions of Edge and Firefox.
I discovered OpenSIPS and all the possibilities a few days ago. I would just use it as a simple SIP proxy to get started. Proxy between my designated UAC and my UAS (asterisk, not natted). The goal is to use a proxy to prevent bot attacks on my UAS.
After installing OpenSIPS, I tried to configure my XLITE (natted) by simply adding the proxy URL in the configuration. It works, I register and I can see in my UAS peers my extensions with proxy IP. But when I make a call, I got a forbidden error. In debug mode, the log does not talk to me, I see a lot of information but nothing about this error.
I did not make any changes to the default configuration script. Is this behavior normal?
I also tried with VM on public IP as UAC (so not named), same thing.
Thank you for your help.
Olivier
Most likely, your SIP INVITE is hitting this block:
if (!is_myself("$rd")) {
send_reply("403", "Relay Forbidden");
exit;
}
What this means is that your OpenSIPS does not consider itself responsible for the domain (or IP) that your SIP UA has placed in the Request-URI and is trying to route towards. To fix this, just whitelist the Asterisk IP as a local (recognized) domain using the alias statement:
listen = udp:*:5060
alias = 1.1.1.1
I'm getting bit helpless with this.
I need a tool that can perform MITM on any chosen SSL stream from localhost to remotehost (not just HTTPS!). Searching for such application seems to be pretty difficult task because all apps seems to follow this trend: SSL==HTTPS. My application trusts the certificate so that's not an issue. For HTTPS I use Proxifier + Charles Debugging Proxy. However Charles can capture only HTTPS, not binary SSL crypted data.
How do I imagine the flow of data.
In best case:
Application->MITM_PROXY->Server
Or:
Application->Proxifier->MITM_PROXY->Server
I think only one working so far was this combination:
SSLSplit on virtualized Linux + virtualized Windows with the application and default gateway set to that linux. Which is as you can imagine very inconvenient. Also the SSLSplit logs both recv and send into one file, which can be problematic with binary stream (I could deal with it I guess).
Any advices?
You could also use sslsplit -L to log to a single log file or named pipe and use a simple script to parse the log format used by SSLsplit, extracting the binary payload and do whatever you like with it. -L uses log headers for each logged segment. SSLsplit comes with a simple python module for parsing its log files in extra/logreader.py.
I know its a rather old question (4 months), but as it still has not been answered i'll give it a shot and leave a direction for future searches.
Have you tried Cain&Abel or stunnel?
I'm trying to get some protocols work through my company's firewall. Until now I have been succesfull in masking either http or https data by setting a http proxy on localhost and one on a remote server I own. The communication is done via $_POSTed and received modified .bmp files that contain a header and the encripted serialised request array.
This works fine, but there are a few drawbacks that make me think I might have taken a wrong approach.
Firstly I do not use apache's mod-proxy. instead I just created a local subdomain (proxy.localhost) and use that in browser's proxy settings. the subdomain's index.php does all the work. This creates some problems. I cannot use http and https simultaneously or the server will complain of using either "http on a https enabled port" or "incoresc ssl response length".
The second problem is, well, other protocols. I could make use of some ftp, sftp, remote deskoptop, ssh, nust name another... I need it
there are 2 solutions I can think of: First is if I run a php script in CLI so that it listens on a predefined port and handles the requests differently, or some sort of ssh tunnel. Problem is I haven't had any success with freeSSHd and putty because of my ignorance.
Thanks in advance for any advice.
I used the free version of bitvise SSH Client and server and it seems to work just fine.
I would like have one quick question. Is there any addon for Firefox or tool how to get session key generated from master secret during SSL handshake by which is encoded symmetrically whole client/server communication? I need it due to decoding of communication (POST/GET/etc..) via Wireshark or PCAP library. As I can see Firebug is showing decrypted communication so I hope there exist some proper ways how to reach this session key :)
Thank you all for a help.
I have good news for you. You can actually get the Master-Key data that you need from both Firefox and Chrome. And you can use the output file in Wireshark to decrypt the SSL/TLS traffic without the need for the private key from the SSL/TLS server. Check out "Method 2" here: http://www.root9.net/2012/11/ssl-decryption-with-wireshark-private.html
As a tip, if you don't want to reboot your machine just open a command prompt and run:
set SSLKEYLOGFILE=c:\sslKeyLogFile.txt
"C:\Program Files (x86)\Mozilla Firefox\firefox.exe"
Since Firefox is being launched from the same session that you added the environment variable in, it will launch with that variable set. Otherwise a restart of Windows will be required after setting it in the System settings dialogs.
I also want to point out that the answer from Chris wasn't necessarily wrong, this is a fairly new feature. It didn't make it into release until Wireshark 1.6.
If you want to use Wireshark then the pre master secret will be of no use for you (you refer to it as 'cipher key' in your question).
Wireshark can only decrypt traffic if you specify the RSA private key of the server, which doesn't change on every connection unlike the pre master secret. However, you can't get that through your browser or anything else for obvious reasons.
If you want to decrypt SSL traffic I suggest using an intermediate proxy instead, like Fiddler. It does not passively capture traffic but proxies the traffic, which enables it to actually decrypt the data sent and received.