I've successfully setup fiddler-everywhere 0.4.0 and am able to sniff traffic to various websites on my linux (Ubuntu 18.04) laptop. However some https sites are not working - fiddler-everywhere severs the connection at the SSL handshake phase. These same sites work in the windows version of Fiddler (v 5.0.20192.25091 - built 04 June 2019) however.
What is the status of the SSL support in fiddler-everywhere vs windows Fiddler?
Example site that fails over https:
Example site that works over https:
Fiddler captures for absa.co.za
CONNECT www.absa.co.za:443 HTTP/1.1 Host: www.absa.co.za:443 Connection: keep-alive User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36 A SSLv3-compatible ClientHello handshake was found. Fiddler extracted the parameters below. Version: 3.3 (TLS/1.2) Random: 1F 0E B0 54 5D 66 42 82 C9 A8 A6 D5 8F C2 F0 C6 A8 16 0C 8E 14 45 F2 B4 B5 95 92 66 B6 53 D6 F4 "Time": 2015/01/09 19:21:35 SessionID: empty Extensions: 0x5a5a empty server_name www.absa.co.za extended_master_secret empty renegotiation_info 00 elliptic_curves unknown [0xBABA), unknown [0x1D), secp256r1 [0x17], secp384r1 [0x18] ec_point_formats uncompressed [0x0] SessionTicket empty ALPN h2, http/1.1 status_request OCSP - Implicit Responder signature_algs sha256_ecdsa, Unknown[0x8]_Unknown[0x4], sha256_rsa, sha384_ecdsa, Unknown[0x8]_Unknown[0x5], sha384_rsa, Unknown[0x8]_Unknown[0x6], sha512_rsa, sha1_rsa SignedCertTimestamp (RFC6962) empty 0x001b 02 00 02 0xeaea 00 Ciphers: [5A5A] Unrecognized cipher - See http://www.iana.org/assignments/tls-parameters/ [C02B] TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 [C02F] TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 [C02C] TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 [C030] TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 [CCA9] TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 [CCA8] TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 [C013] TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA [C014] TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA [009C] TLS_RSA_WITH_AES_128_GCM_SHA256 [009D] TLS_RSA_WITH_AES_256_GCM_SHA384 [002F] TLS_RSA_AES_128_SHA  TLS_RSA_AES_256_SHA [000A] SSL_RSA_WITH_3DES_EDE_SHA Compression:  NO_COMPRESSION
HTTP/1.1 200 Connection Established FiddlerGateway: Direct StartTime: 10:28:40.706 Connection: close fiddler.network.https> HTTPS handshake to www.absa.co.za (for #329) failed. System.IO.IOException Unable to read data from the transport connection: Connection reset by peer. < Connection reset by peer
Currently, Fiddler Everywhere just hard-fails on any invalid SSL certificate. More annoyingly, it doesn't explain why the certificate is invalid.
Fiddler Everywhere should:
1. Allow overriding a certificate error (possibly hide this behind an option)
2. Explain what caused a certificate error
I search use Socks5 and received answers:
Hi, Fiddler supports SOCKS4a version. If you are trying to use another SOCKS version, this might be the reason why it is not working. Could you please, elaborate on the error you receive. Regards, Simeon Progress Telerik
He advised me to create a new request!
Will what I want to be done?