Toshio Kuratomi wrote:
> The Mediawiki auth plugin has to contact
admin.fedoraproject.org in
> order to lookup the users and verify their passwords. It's using curl
> to do so. One of the options being given to curl is the following:
>
> # This is only required because of the wildcard cert on pt10
> curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
>
> That turns off verifying the host via SSL. From the comment it appears
> to only be needed with the test FAS server. I'd like to comment this
> line out.
>
> This is a flaw that potentially opens us to a DNS spoofing attack to
> compromise authentication. Luckily for us, there is a problem with
> routing to
admin.fedoraproject.org within PHX so we have an /etc/hosts
> entry for admin.fp.o that directs the wiki to use an internal IP
> address. That means for this flaw to affect us, someone would have to
> compromise the /etc/hosts files rather than a DNS server. So we should
> fix this but compromising it is not as easy.
>
> If this fails, we will see authentication failures when we try to login
> to the wiki and can revert.
>
After looking at this a little more with G, there's two settings to toggle:
CURLOPT_SSL_VERIFYPEER
CURLOPT_SSL_VERIFYHOST
They're both set to off right now and I'd like to turn them both back
on. Tested with a small php script that turning them on doesn't
interfere with retrieving data.
> Can I get a couple +1's?