update blog

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agatha 2023-10-11 20:24:15 -04:00
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commit cda9fd84f6

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@ -19,10 +19,10 @@ docker compose up -d
python rr.py python rr.py
``` ```
4. decode traffic in wireshark using `ssl-keylog.log` as the ssl keyfile 4. decode traffic in wireshark using `ssl-keylog.log` as the tls keyfile
5. compare against the cloudflare blog notes (unless you have the pcap which seems to be gone now) 5. compare against the cloudflare blog notes (unless you have the pcap which seems to be gone now)
## notes ## comparison to blog article
server advertises maximum stream concurrency of 128: server advertises maximum stream concurrency of 128:
![Maximum concurrent streams](.img/maxstreams.png) ![Maximum concurrent streams](.img/maxstreams.png)
@ -39,10 +39,15 @@ despite exceeding maximum number of advertised streams, the server never sends a
> No server RST_STREAM frames are seen in this trace, indicating that the server did not observe a concurrent stream violation. > No server RST_STREAM frames are seen in this trace, indicating that the server did not observe a concurrent stream violation.
obviously to weaponize it, it will take some extra effort like implementing concurrency. but don't do ## disclaimer lol
that shit for any reason other than research. i'm saying this explicitly because this is only a poc, so obviously more work will be needed to test it against your own infrastructure. don't do
we've seen examples of "illegal code" before. i do this solely for research, and fun of that shit for any reason other than research. you -- the reader -- are responsible
for your own actions. i do this solely for research, and fun of
course, because c'mon this shit is so interesting. course, because c'mon this shit is so interesting.
prior to today, i had very minimal knowledge of http/2, so i learned a lot from this exercise.
i kept my example code for learning basics of http/2 in python as it gives insight into my process of
learning.
## greetz ## greetz
greetz to psyk0, shifty, and slerig. who needa stop slackin, but i still love em anyway. greetz to psyk0, shifty, and slerig. who needa stop slackin, but i still love em anyway.