Hello.

 

On Windows it works perfectly fine for me. However on Linux fiddler everywhere seems to be unable to catch traffic from windows games running through proton. Is there any way to get that working?

Within Rules, Conditions: we can choose between 

• all these conditions
• any of these conditions
• none of these conditions

is it possible to choose more than 1 operand for several items?

Examples:

Condition1 AND Condition2 OR Condition3

Condition1 AND Condition2  NOT Condition3

 

 

I want to redirect traffic from my Chromebook using fiddler everywhere. Unfortunately I do not have access to the fiddler jam extension, so I need to use an external device which is my mac. I followed this in the docs (https://docs.telerik.com/fiddler-everywhere/knowledge-base/how-to-track-different-devices). I connected my Chromebook on the same internet and with the proxy with the correct computer name and port, and saved the settings. I tested the internet on https://www.google.com but no internet. What am I doing wrong?

I noticed the Comment column is displaying 'bytes'

Ok no prize but this has been bothering me for a while and after endless googling and searching I can't figure it out so asking here for some help. Using Fiddler Classic and have this connection that won't work and can't figure out why.. while another almost identical and to same server works! .. so listing both, good one and bad one here and hoping someone can help and let me know what I'm missing.

The name of the party involved has been changed to protect its identity! :-P

Thank you all in advance!

The one that works:

CONNECT xx-xxxx.xxxx.com:443 HTTP/1.1

Host: cn-geo1.uber.com

User-Agent: Xxxxxx/x.xxx.xxxxx CFNetwork/1240.0.4 Darwin/20.6.0

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: D6 98 B2 86 F9 D5 6C 89 44 34 E5 CE 3D 7E DE B8 5E 17 80 09 C8 1B 4A 89 32 E9 76 33 02 B8 13 1D

"Time": 8/11/2041 12:31:18 PM

SessionID: D7 1A 00 00 28 58 81 5E 09 42 2C 7D FF 52 69 45 04 1F 6A 9A F1 AC 7F 1C 8A 4F BB 05 B6 90 1D 07

Extensions: 

grease (0xcaca) empty

server_name xx-xxxx.xxxx.com

extended_master_secret empty

renegotiation_info 00

supported_groups grease [0xdada], x25519 [0x1d], secp256r1 [0x17], secp384r1 [0x18], secp521r1 [0x19]

ec_point_formats uncompressed [0x0]

ALPN 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 DA DA 00 01 00 00 1D 00 20 FB 83 F0 42 95 E5 7A A0 20 36 5D 34 31 B9 CF D2 F1 1C 6C D7 E4 4A 32 0E 4B 33 96 4C 90 4C 91 12

psk_key_exchange_modes 01 01

supported_versions grease [0xa0a], Tls1.3, Tls1.2

grease (0x6a6a) 00

padding 210 null bytes

Ciphers: 

[5A5A] 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

 

Compression: 

[00] NO_COMPRESSION

 

 

HTTP/1.1 200 Connection Established

FiddlerGateway: Direct

StartTime: 17:35:47.943

Connection: close

 

Encrypted HTTPS traffic flows through this CONNECT tunnel. HTTPS Decryption is enabled in Fiddler, so decrypted sessions running in this tunnel will be shown in the Web Sessions list.

 

Secure Protocol: Tls12

Cipher: Aes128 128bits

Hash Algorithm: Sha256 ?bits

Key Exchange: ECDHE_RSA (0xae06) 255bits

 

== Server Certificate ==========

[Subject]

  CN=*.xxxx.com, O="Xxxx Xxxxxxxxxxxx, Inc.", L=San Francisco, S=California, C=US

 

[Issuer]

  CN=DigiCert TLS RSA SHA256 2020 CA1, O=DigiCert Inc, C=US

 

[Serial Number]

  04B114FE39AFD58E244CD867F6289C33

 

[Not Before]

  9/29/2022 8:00:00 PM

 

[Not After]

  10/3/2023 7:59:59 PM

 

[Thumbprint]

  A3973CE541FA00B8ABFAF00A7A656566D9C8B85E

 

[SubjectAltNames]

*.xxxx.com, xxxx.com

I'm using Fiddler Classic v5.0.20211.51073 for .NET 4.6.1 Built: Wednesday, 15 December 2021 on Windows 11.

The update check at start-up, or if manually performed, always fails (see attachment).

The captured traffic is shown below.

What's causing the issue and how do I rectify it?

Thanks.

 

GET https://www.fiddler2.com/UpdateCheck.aspx?isBeta=False HTTP/1.1
User-Agent: Fiddler/5.0.20211.51073 (.NET 4.8; WinNT 10.0.22621.0; en-AU; 8xAMD64; Auto Update; Full Instance; Extensions: APITesting, AutoSaveExt, EventLog, FiddlerOrchestraAddon, HostsFile, RulesTab2, SAZClipboardFactory, SimpleFilter, Timeline)
Pragma: no-cache
Host: www.fiddler2.com
Accept-Language: en-AU
Referer: http://fiddler2.com/client/5.0.20211.51073
Accept-Encoding: gzip, deflate
Connection: close


HTTP/1.1 502 Fiddler - Connection Failed
Date: Fri, 23 Dec 2022 01:22:54 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Cache-Control: no-cache, must-revalidate
Timestamp: 11:22:54.613

[Fiddler] The connection to 'www.fiddler2.com' failed.  <br />System.Security.SecurityException Failed to negotiate HTTPS connection with server.fiddler.network.https&gt; HTTPS handshake to www.fiddler2.com (for #1) failed. System.IO.IOException Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. &lt; An existing connection was forcibly closed by the remote host

                                                                                    

 

 

Hello,

can Fiddler caputre between an Windows application and a destination IP? 

Thank's!

Joe

Not so much of a question, but more like presenting a straight-up issue I'm having while trying to install Telerik Fiddler Classic v5.0.20211.51073

Every time I try to start the setup, I get this error message (see attachment).

Needless to say I've no idea why my Internet Connection would be the issue, as I'm using it right now to write this. I've already tried running the installer as administrator, compatibility mode, disabling my antivirus and even the firewall to no use. 

Any ideas?

I get the error This endpoint does not support HTTP CONNECTs. Try GET or POST instead.  

Sucessful GET Requests have a Content-Type of text/html;charset=ISO-8859-1.

In FiddlerScript I have built the exact same Request as a string variable. When I send it using FiddlerObject.utilIssueRequest it fails with an HTTP 500 error and no value in the Session Content-Type column.

How does one set the Content-Type of the entire GET Request?

Jerry