Moiseenko Andrey's crtmpserver security patch
JSK MaaSoftware
support at maasoftware.ru
Wed Oct 11 19:25:11 UTC 2017
Hello, Maintainers!
I have found a security problem in crtmpserver in December 2015, still
exists.
The problem is any rtmp streams generators like web cams, ffmpeg, etc
can send they stream to you crtmpserver server anonymously and
playback it. It can be a problem for you due to anybody can use your
server for video streaming not for your sites nor your application.
To solve the problem i create a patch based on code found by google
for connect schema name and swf name check. And I have my
additions to check remote (source) and local IP addresses of
connection to allow to translate rtmp from certain static IPs.
I am novice in open source commit, and just have to read 4 configs
from hard coding dir /etc/crtmpserver (local_ip.txt, remote_ip.txt,
tc_url.txt, swf_url.txt).
I am trying to build modified source (Thank for Sebastian Ramacher for
Bug#878211: crtmpserver can not be compilled from source - answered how
to compile crtmpserver from Debian source).
"dpkg-source -commit" say me:
dpkg-source: info: local changes have been recorded in a new patch:
crtmpserver-1.0/debian/patches/maa_crtmpserver_security_path.diff
I think my path was not sent to Debian Maintainers by
"dpkg-source -commit" command
I am attaching my more detailed patch4.txt with
/etc/crtmpserver/*txt samples generated by
diff -Naur crtmpserver-1.0~dfsg crtmpserver-1.0_mod >patch4.txt
Please fix me if can, about fixed path /etc/crtmpserver
Waiting for code to be integrated into new versions of crtmpserver.
--
Best regards,
Moiseenko Andrey,
e-mail: support at maasoftware.ru
web: http://www.maasoftware.ru
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