I was able to load a HTTPS site in chrome. But as soon as i start fiddler to capture the HTTPS, I can't load that site anymore. I get this in my chrome.

Your connection is not private Attackers might be trying to steal your information from testsite.com (for example, passwords, messages, or credit cards). NET::ERR_CERT_AUTHORITY_INVALID

My question is how can I use fiddler to capture HTTPS traffic?

Your connection is not private

Attackers might be trying to steal your information from onedrive.live-int.com (for example, passwords, messages, or credit cards). NET::ERR_CERT_AUTHORITY_INVALID

Your connection is not private

Attackers might be trying to steal your information from onedrive.live-int.com (for example, passwords, messages, or credit cards). NET::ERR_CERT_AUTHORITY_INVALID

Firefox Nightly 42.0a1. See screenshot in the attachment.

 The "More Information" link URL is https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox

I am getting "System.ArgumentException: Invalid JSON primitive:" while i am testing my asp.net web api using fiddler.

 Header is as follows

Content-Type: multipart/form-data; boundary=-------------------------acebdf13572468
User-Agent: Fiddler
Host: trackonpro.in
Content-Length: 8976

Body is as follows

---------------------------acebdf13572468
Content-Disposition: form-data; name="json" 
Content-Type: application/json
{
"WR_id":"0",
"Com_Id": "5",
"Usr_Id":"22",
"WRC_id":"1",
"App_id":"1",
"Ser_LogNo":"2",
"WR_Comments":"Test",
"WR_date":"2015-12-23 01:30:50.000",
"WR_Location":"test",
"WR_lati":"10.45465",
"WR_longi":"70.23654",
"Status_id":"11"
}
---------------------------acebdf13572468
Content-Disposition: form-data; name="fieldNameHere"; filename="download (1).png"
Content-Type: image/png

<@INCLUDE *C:\Users\MANU\Desktop\cv\download (1).png*@>
---------------------------acebdf13572468
Content-Disposition: form-data; name="fieldNameHere"; filename="download.png"
Content-Type: image/png

<@INCLUDE *C:\Users\MANU\Desktop\cv\download.png*@>
---------------------------acebdf13572468--

 and the error i am getting is as follows

System.ArgumentException: Invalid JSON primitive: "0", "Com_Id": "5", "Usr_Id":"22", "WRC_id":"1", "App_id":"1", "Ser_LogNo":"2", "WR_Comments":"Test", "WR_date":"2015-12-23 01:30:50.000", "WR_Location":"test", "WR_lati":"10.45465", "WR_longi":"70.23654", "Status_id":"11" }. at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input) at WebApplication.Areas.Json.Controllers.Work_ReportController.d__4.MoveNext()

Kindly please help me to fix it

Thankyou

hey,

There was question in microsoft ctf that we have to upload a file of particular format to get the flag but code was not given also the format of the file was not given..... so we have to somehow upload a file a file to get flag......................hint of the question was  "By fiddler"  Can anyone resolve my query , how to solve it???????????

Is there a .dmg download for fiddler on Mac? I can only see an .exe on the site.

Thanks. 

Hi - running Fiddler Web Debugger (v4.6.2.0) on W7 64

1) Running a java app (q.jar, attached)

2) I set proxy in Java control panel:

Control Panel>Java>General>Network Settings:
Use Proxy Server:
Address: 127.0.0.1 (or localhost)
Port: 8888

3) I launch q.jar (double-click in Windows Explorer) which gives me a java warning message that the app cannot connect to the web server.  This is normal (the web server was taken down a few years ago), so I am trying to use fiddler to redirect to my local server.

But I cannot get fiddler to capture the q.app traffic to get the needed config info for redirection.

Could anyone please help me?

Thanks -

Sam

upgraded fiddler on administrative signon.  made changes for port.  ie and chrome no longer work on admin signon but work okay on user.

 13:59:48:0873 Assembly 'C:\Program Files (x86)\Fiddler2\CertMaker.dll' was not found. Using default Certificate Generator.
13:59:48:1273 /Fiddler.CertMaker> Using Fiddler.DefaultCertificateProvider+CertEnrollEngine for certificate generation; UseWildcards=True.

hi sometimes i connect local fiddler to another fiddler that is on my server

i intend use fiddler and filtering while bypassing my network's filters

 but sometimes i receive this error

"The client failed to send a complete request on this REUSED connection before the timeout period elapsed; 0 bytes were read from client."

but its not always 

after waiting 10~ seconds everything goes on

what may be the problem

 http://i.imgur.com/tHzXLMJ.png