intercpet curl command to get body request

2 posts, 0 answers
  1. fabrizio
    fabrizio avatar
    7 posts
    Member since:
    Oct 2010

    Posted 31 Aug 2018 Link to this post

    windows 10 connected to the internet through wifi, no proxy. I need to read a curl request to rewrite in c# code.

    using curl 7.61.0 and fiddler 5.

    this command just works fine:

      curl -X POST -u "73b63264-b68c-4591-af76-96f325969d0b":"X7bECApaBi0o" -F "file=@c:\temp\1.json"

    with fiddler running the command above works fine too ma no traced into fiddler.

    this command is traced into fiddler but fails to execute:

    curl --proxy -X POST -u "73b63264-b68c-4591-af76-96f325969d0b":"X7bECApaBi0o" -F "file=@c:\temp\1.json"

    this the error "curl failed to verify the legitimacy of the server and therefore could not
    establish a secure connection to it. To learn more about this situation and
    how to fix it, please visit the web page mentioned above"


    Inspecting the requerst in fiddler , this the raw data of request, but i need to extract the body of request. How do i do?



    User-Agent: curl/7.61.0
    Connection: Keep-Alive

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

    Version: 3.3 (TLS/1.2)
    Random: 14 67 89 3B 5E 0D 45 EF 2B 75 A0 39 5D C0 B0 BB EB 78 1E 49 BC F1 64 5C ED F6 19 BF 37 79 80 07
    "Time": 26/08/2001 23:16:04
    SessionID: empty
        ec_point_formats    uncompressed [0x0], ansiX962_compressed_prime [0x1], ansiX962_compressed_char2  [0x2]
        elliptic_curves    unknown [0x1D), secp256r1 [0x17], secp521r1 [0x19], secp384r1 [0x18]
        NextProtocolNego    empty
        ALPN        h2, http/1.1
        encrypt_then_mac (RFC7366)    empty
        extended_master_secret    empty
        signature_algs    sha512_rsa, sha512_dsa, sha512_ecdsa, sha384_rsa, sha384_dsa, sha384_ecdsa, sha256_rsa, sha256_dsa, sha256_ecdsa, sha224_rsa, sha224_dsa, sha224_ecdsa, sha1_rsa, sha1_dsa, sha1_ecdsa
        [C02C]    TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
        [C030]    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        [009F]    TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
        [C02B]    TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
        [C02F]    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
        [009E]    TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
        [C024]    TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
        [C028]    TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
        [006B]    TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
        [C023]    TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
        [C027]    TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
        [0067]    TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
        [C014]    TLS1_CK_ECDHE_RSA_WITH_AES_256_CBC_SHA
        [0039]    TLS_DHE_RSA_WITH_AES_256_SHA
        [C009]    TLS1_CK_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
        [C013]    TLS1_CK_ECDHE_RSA_WITH_AES_128_CBC_SHA
        [0033]    TLS_DHE_RSA_WITH_AES_128_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_AES_256_SHA
        [002F]    TLS_RSA_AES_128_SHA

        [00]    NO_COMPRESSION



  2. Alexander
    Alexander avatar
    383 posts

    Posted 04 Sep 2018 Link to this post


    It seems that curl does not trust Fiddler's root certificate as a certificate authority. You should get Fiddler's certificate (Tools -> Options -> HTTPS -> Actions -> Export Root Certificate to Desktop) and add it to curl's trusted CA certificate store.

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