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From "Nilesh Govindrajan" <li...@itech7.com>
Subject Re: [users@httpd] SSI/server-side includes and symbolic links/SymlinkIfOwnerMatch
Date Sat, 04 Oct 2008 02:11:15 GMT
/usr/pkg/etc/httpd/htpasswd owner is root and Apache runs as daemon /
whatever you set in User directive. So its obviously not going to work with
SymlinkIfOwnerMatch. You need FollowSymLinks in Options.

On Sat, Oct 4, 2008 at 2:52 AM, Paul B. Henson <henson@acm.org> wrote:

>
> I'm running Apache 2.2.8, configured with SymlinkIfOwnerMatch and
> server-side includes enabled.
>
> It looks like the server-side include "include" directive ignores the
> setting of SymlinkIfOwnerMatch?
>
> For example, let's say I have an htpasswd configuration file outside of the
> document root:
>
> -rw-r-----   1 root     webservd       7 Oct  3 14:00
> /usr/pkg/etc/httpd/htpasswd
>
> If I then make a symbolic link to that from a user account:
>
> lrwxrwxrwx   1 henson   csupomona      27 Oct  3 14:01
> /user/henson/www/pass.html -> /usr/pkg/etc/httpd/htpasswd
>
>
> Access is forbidden, with the following message in the log file:
>
> [Fri Oct 03 14:01:51 2008] [error] [client 134.71.248.12] Symbolic link
> not
> allowed or link target not accessible: /export/user/henson/www/pass.html
>
>
> However, if I create a server parsed HTML file in the same directory
> containing the following:
>
>        <!--#include file="pass.html" -->
>
> When I request the .shtml file, the contents of the file pointed to by the
> symbolic link are included.
>
> I had thought that configuring server side includes with IncludesNoExec
> was reasonably safe, but it would appear that such a configuration allows
> any file readable by the web server itself to be served?
>
> I took a look at mod_include.c, the include directive appears to be handled
> by the handle_include function which calls either ap_sub_req_lookup_file or
> ap_sub_req_lookup_uri depending on whether the include is file or virtual,
> and then calls ap_run_sub_req to presumably handle dumping out the content
> of the include.
>
> As a sub request, I would have intuitively thought it would honor the
> configuration setting regarding symbolic links?
>
> Am I confused? Is there something wrong with my configuration? Is this an
> expected behavior (I searched quite a bit and didn't find anything
> relevant)?
>
> Thanks much for any help...
>
>
> --
> Paul B. Henson  |  (909) 979-6361  |  http://www.csupomona.edu/~henson/<http://www.csupomona.edu/%7Ehenson/>
> Operating Systems and Network Analyst  |  henson@csupomona.edu
> California State Polytechnic University  |  Pomona CA 91768
>
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>


-- 
Nilesh Govindrajan (nilesh@itech7.com)

iTech7 Site and Server Administrator

www.itech7.com

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