Hello,

I am using fiddler classic. I want to test a request. The api provider asks me to include 2 headers(request id and signature)

I was able to replace request id in header by placing the below code in onbefore request

if (oSession.oRequest)     
        {  
            {
                oSession.oRequest["Request-Id"] = "New Request id";

                oSession.oRequest["Signature:"] = "New Signature";           

          }    

     }

 

But I am not able to auto generate md5 hash. How can the auto-generation of md5 hash for request header be achieved?

Thank you.

 

Regards,

Adam

Hi. Im new to fiddler and I was wondering if its possible to send POST request multiple times with different body everytime, 

specifically, Im sending a pin code in the request and I want to brute force on all possible pin code with 6 digits.

Is it possible?

Thanks!

This is asked before too but it's not working for me.

Hey,

So I wanted to give Fiddler Everywhere a try, but for some Reason Fiddler4 (2?) now refuse to decrypt HTTPs Traffic.

 

19:50:40:5619 Assembly 'C:\Users\xx\AppData\Local\Programs\Fiddler\CertMaker.dll' was not found. Using default Certificate Generator.
19:50:40:5644 /Fiddler.CertMaker> Using .‰+˜ for certificate generation; UseWildcards=False.
19:50:50:4136 /Fiddler.CertMaker> Failed to identify private key location for Root Certificate. Exception: System.Security.Cryptography.CryptographicException Der Schlüsselsatz ist nicht vorhanden.

It tells me CertMaker.dll is missing,  so he Fallback to Default Generator, but that just post some random rubbish Icons. The Last Error Message is telling me, that he cannot find the Private Key (I installed certificates Multiple Times)

Just Curious if there is a way to fix that issue?

[FiddlerCore]

how to bind datagridview to  Oflags

i have oflag["Deviation"]. how do i bind this to a datagridview

            dataGridView1.Columns[0].Name = "id";
            dataGridView1.Columns[0].HeaderText = "id";
            dataGridView1.Columns[0].DataPropertyName = "id";
            dataGridView1.Columns[1].Name = "fullUrl";
            dataGridView1.Columns[1].HeaderText = "fullUrl";
            dataGridView1.Columns[1].DataPropertyName = "fullUrl";
            dataGridView1.Columns[2].Name = "LocalProcess";
            dataGridView1.Columns[2].HeaderText = "LocalProcess";
            dataGridView1.Columns[2].DataPropertyName = "LocalProcess";
            dataGridView1.Columns[3].Name = "oFlags";
            dataGridView1.Columns[3].HeaderText = "oFlags";
            dataGridView1.Columns[3].DataPropertyName = "oFlags[Deviation]";
           
            dataGridView1.AutoResizeColumn(0);

Can someone help fix this?

 

 

---------------------------
Initialization of CONFIG Failed
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

O inicializador de tipo para '.š' accionou uma excepção.

Type: System.TypeInitializationException
Source: Fiddler
   em Fiddler.FiddlerApplication.()

   em Fiddler.CONFIG..cctor()

System.TypeInitializationException: O inicializador de tipo para 'š.š' accionou uma excepção. ---> System.IO.FileNotFoundException: Não foi possível carregar o ficheiro ou assemblagem 'Analytics, Version=1.0.20182.27266, Culture=neutral, PublicKeyToken=2b2cea67609c9510' ou uma das respectivas dependências. O sistema não conseguiu localizar o ficheiro especificado.

   em š.š..ctor()

   em š.š..cctor()

   --- Fim do rastreio da pilha de excepção interna ---

   em .š..ctor()

   em .š..cctor()
Fiddler v5.0.20204.45441 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.19043.0] 
---------------------------
OK   
---------------------------

Hello,

I recently installed fiddler to reverse engineer an android app. How that I'm finished with my research I uninstalled fiddler. However it seems like that fiddler messed with my windows settings. I can no longer send a http request using .NET. When running the request via Postman or simply my webbrowser the request reaches my webserver and I get the answer.

This is the code I use to perform the request, which results in 'No connection could be made because the target machine actively refused it. (192.168.0.96:8888)'.

So I was wondering, where this port was coming from, because I specified 5004 but it ended up to be 8888. I checked my windows proxy settings.

I also tried clearing the IWinNet Cache using fiddler. No effect.

Then I discovered that when running fiddler again, my requests goes through. I also noticed that the Capture Traffic options has no effect. No matter if I monitor the traffic or not, my request is shown in fiddler.

I don't know what to do, and really hate the fact that I always have to run a proxy in order to work!

 

Thanks in advance!

Sebastian

CONNECT apicl3.celcom.com.my:443 HTTP/1.1
Host: apicl3.celcom.com.my
User-Agent: celcom_life/200333 CFNetwork/1240.0.4 Darwin/20.5.0
Connection: keep-alive
Connection: keep-alive

A SSLv3-compatible ClientHello handshake was found. Fiddler extracted the parameters below.

Version: 3.3 (TLS/1.2)
Random: 44 84 7D 65 07 24 79 BB A3 1A 28 9C 74 13 25 86 09 32 96 4C 68 86 E1 8D BA 8E EE F6 D7 09 00 3A
"Time": 16/12/2023 7:04:36 PM
SessionID: CA 31 92 D7 01 7E ED B3 00 56 BE 7E 29 BF B7 09 07 30 47 FB 02 21 6D 71 F5 82 B0 0F BC A0 91 AC
Extensions: 
grease (0x3a3a) empty
server_name apicl3.celcom.com.my
extended_master_secret empty
renegotiation_info 00
supported_groups grease [0x3a3a], x25519 [0x1d], secp256r1 [0x17], secp384r1 [0x18], secp521r1 [0x19]
ec_point_formats uncompressed [0x0]
ALPN h2, http/1.1
status_request OCSP - Implicit Responder
signature_algs ecdsa_secp256r1_sha256, rsa_pss_rsae_sha256, rsa_pkcs1_sha256, ecdsa_secp384r1_sha384, ecdsa_sha1, rsa_pss_rsae_sha384, rsa_pss_rsae_sha384, rsa_pkcs1_sha384, rsa_pss_rsae_sha512, rsa_pkcs1_sha512, rsa_pkcs1_sha1
SignedCertTimestamp (RFC6962) empty
key_share 00 29 3A 3A 00 01 00 00 1D 00 20 88 B4 9B C1 94 50 43 4C 36 70 D6 65 FF 6D 03 C0 64 80 87 A8 3C 9C 5B A9 CF DF 87 26 69 21 4E 1F
psk_key_exchange_modes 01 01
supported_versions grease [0x3a3a], Tls1.3, Tls1.2, Tls1.1
grease (0x8a8a) 00
padding 181 null bytes
Ciphers: 
[6A6A] Unrecognized cipher - See https://www.iana.org/assignments/tls-parameters/
[1301] TLS_AES_128_GCM_SHA256
[1302] TLS_AES_256_GCM_SHA384
[1303] TLS_CHACHA20_POLY1305_SHA256
[C02C] TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
[C02B] TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
[CCA9] TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
[C030] TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
[C02F] TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
[CCA8] TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
[C024] TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
[C023] TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
[C00A] TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
[C009] TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
[C028] TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
[C027] TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
[C014] TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
[C013] TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
[009D] TLS_RSA_WITH_AES_256_GCM_SHA384
[009C] TLS_RSA_WITH_AES_128_GCM_SHA256
[003D] TLS_RSA_WITH_AES_256_CBC_SHA256
[003C] TLS_RSA_WITH_AES_128_CBC_SHA256
[0035] TLS_RSA_WITH_AES_256_CBC_SHA
[002F] TLS_RSA_WITH_AES_128_CBC_SHA
[C008] TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
[C012] TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
[000A] SSL_RSA_WITH_3DES_EDE_SHA

Compression: 
[00] NO_COMPRESSION

Hello Team,

I'm using fiddler to diagnose some intermittent https timeout issue(need to check internal cookie).

I'm using ODBC driver for apache hive to connect my websites.

but when I use fiddler classic trying to capture https traffic send out by ODBC driver, but I could see any captured by fiddler (but could see in wireshark).

can we capture ODBC https traffic via fiddler? what i think we can do that but i'm not what config i missed. Appreciate your help.

Thanks,

Vincent

---------------------------
Folder Creation Failed
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

The tag present in the reparse point buffer is invalid.



Type: System.IO.IOException
Source: mscorlib
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)

   at System.IO.Directory.InternalCreateDirectory(String fullPath, String path, Object dirSecurityObj, Boolean checkHost)

   at System.IO.Directory.InternalCreateDirectoryHelper(String path, Boolean checkHost)

   at Fiddler.CONFIG.() in C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Application\Config.cs:line 1825


Fiddler v5.0.20204.45441 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.19043.0] 
---------------------------
OK   
---------------------------