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With the introduction of the new Fiddler Everywhere client, we are also moving the forums and feedback portal to a new location. Please follow this link to the new forum experience, use your existing Fiddler Everywhere credentials to login, and post any questions you may have. 

The existing Fiddler Everywhere forum will be locked and users won't be able to create new threads or update existing ones. The forum will remain available in read-only state.

Garo
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Rank 1
 asked on 29 Jul 2020
0 answers
2 views

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?

Tim
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Rank 1
 updated question on 03 Aug 2021
0 answers
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[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);
Chetan
Top achievements
Rank 1
 asked on 02 Aug 2021
1 answer
15 views

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   
---------------------------

Liu
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Iron
 answered on 30 Jul 2021
0 answers
10 views

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


Sebastian
Top achievements
Rank 1
 asked on 27 Jul 2021
0 answers
11 views
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

Edison
Top achievements
Rank 1
 asked on 26 Jul 2021
0 answers
6 views

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

vincent
Top achievements
Rank 1
 updated question on 26 Jul 2021
0 answers
9 views
---------------------------
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   
---------------------------
Derek
Top achievements
Rank 1
 asked on 23 Jul 2021
0 answers
6 views
 

Hello,

I'm trying to capture the traffic from an app which is refusing to connect to local proxy (127.0.0.1, 192.168.X.X), but accepts other proxies.

My goal is to create a local virtual interface, with an IP such as 10.0.0.1, and I would like to set my proxy to this IP.

It would be convenient for me if I could tell Fiddler to set the local proxy to this IP and listen on this interface instead of the usual 127.0.0.1. Is it possible ? How ?

As an other option, I could use the setting "Allow remote computers to connect" and set the proxy settings manually, but Fiddlers doesn't let me do that on the same computer as it stops listening when I manually change proxy settings.

Any help would be much appreciated.

Herysia
Top achievements
Rank 1
 asked on 22 Jul 2021
0 answers
8 views

I wanted to obtain the HTTPS POST URL generated from a "highly obfuscated" Phish in HTML format.  But I had problems.

I exported the Certificate generated by Fiddler Classic, v5.0.20204.45441, and I was surprised to see the Certificate expired on 6/12/'21.  I see that that is is the last released version.

Is there an update to Fiddler Classic that will generate a Trusted Cert that is current and not expired ?

 

 

 

D H Lipman
Top achievements
Rank 1
 asked on 21 Jul 2021
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