[Bug 57810] Should apache ignore difference in trailing dot between SNI and HTTP requests?

[bu...@apache.org]

https://bz.apache.org/bugzilla/show_bug.cgi?id=57810

Jean-Luc Duprat <jl...@acm.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 OS|Mac OS X 10.1               |Linux

--- Comment #1 from Jean-Luc Duprat <jl...@acm.org> ---
I am trying to access a URL via https through both the regular URL and one that
ends with a trailing dot:

example.com 
example.com.

The reason the second case matters is URLs reported by DNS-SD have the trailing
dot appended.  See http://www.dns-sd.org/trailingdotsindomainnames.html

I have a certificate that contains the the subject's common name as
CN=example.com
and the following SANs:
X509v3 Subject Alternative Name:
DNS:example.com, DNS:www.example.com, DNS:example.com., DNS:www.example.com.

I am using Name-based Virtual Host Support, with the virtual host section
looking like so:

<VirtualHost *:443>
    Options None
    ServerName example.com
    ServerAlias www.example.com
    ServerAlias example.com.
    ServerAlias www.example.com.
[...]
</VirtualHost>

CSP and HSTS are disabled.

When trying to connect to example.com. I get the following error:

[ssl:error] [pid 22158] AH02032: Hostname example.com. provided via SNI and
hostname example.com provided via HTTP are different

All desktop browsers I've tried (Firefox, Chrome, Safari) drop the trailing dot
on the the name for the HTTP request.

Since the URL is generated by service discovery I have no control over it.  The
clients also behave consistently.  The only way to get this to work would be
for apache to allow for this minor difference between the SNI and HTTP
hostnames.

Would such a patch be considered for inclusion?

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