tcpdump mailing list archives

Re: Assistance with Capturing cURL Request using tcpdump


From: Guy Harris <gharris () sonic net>
Date: Tue, 1 Oct 2024 11:38:45 -0700

On Oct 1, 2024, at 8:38 AM, Kaushal Shriyan <kaushalshriyan () gmail com> wrote:

Thanks, Michael, for the quick response. Is there a way to capture and
analyze *HTTPS* traffic since the data is encrypted?

Maybe, *if* you can get the necessary information; see

        https://wiki.wireshark.org/TLS#tls-decryption

As it notes:

        "The key log file is generally recommended since it works in all cases, *but requires the continuous ability to 
export the secrets from either the client or server application*." - emphasis mine; that's what Michael was referring 
to when he said

                You'll have to modify the application.
                Some TLS libraries have options to dump things.

Otherwise, as Michael noted, no - the "S" in "TLS" stands for "security" (and the first "S" in "SSL" stands for 
"secure"), and that's "security" as in "preventing people from capturing your traffic and reading it".
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