Package: haproxy
Version: 2.6.12-1
suggest to fix this default forwarding
-------- Message transféré --------
Sujet : Re: CVE request: headers forward can lead to h2c request
smuggling (fwd)
Date : Mon, 28 Oct 2024 07:08:40 +0100
De : Willy TARREAU <wtarreau@???>
Pour : bUst4gr0@???
Hello,
Thanks for contacting us!
> i did a CVE request about HAProxy and the default forward of the headers
> upgrade and connection which can lead to an h2c request smuggling or a
> web-socket smuggling.
>
> The CVE request is just about h2c (over clear text) i didn't POC
> enough for
> the web-socket smuggling.
>
> I'll appreciate to talk about this with you.
I guess you're speaking about this commit:
7b89aa5b19 ("BUG/MINOR: h1: do not forward h2c upgrade header token")
If so, it's already backported for next stable releases:
3.0: cba44958ae
2.9: cf31943d74
If not, do not hesitate to share details about your concerns.
Thanks,
Willy