Stefan Schulze Frielinghaus wrote:
I wanted to fix a problem with awstats and httpd_t but I ran into a
problem and just wanted to hear some other ideas.
Awstats uses the apache content template:
apache_content_template(awstats)
And a few awstats icons are labeled as httpd_awstats_content_t. When the
awstats CGI script is executed it generates a HTML file which includes
links to these icons. As soon as the httpd receives a query from the
client to download these icons an AVC is generated and the request is
denied. To allow this I would have to include a rule like:
allow httpd_t httpd_awstats_content_t:dir getattr;
allow httpd_t httpd_awstats_content_t:file { getattr read };
But then I would have to write a require statement for my awstats module
to include the type httpd_t as a dependency. While reading the apache.te
file I recognized three lines:
allow httpd_t httpd_sys_content_t:dir list_dir_perms;
read_files_pattern(httpd_t,httpd_sys_content_t,httpd_sys_content_t)
read_lnk_files_pattern(httpd_t,httpd_sys_content_t,httpd_sys_content_t)
Why aren't these ones included in the apache_content_template like these
ones:
allow httpd_t httpd_$1_content_t:dir list_dir_perms;
read_files_pattern(httpd_t,httpd_$1_content_t,httpd_$1_content_t)
read_lnk_files_pattern(httpd_t,httpd_$1_content_t,httpd_$1_content_t)
This would solve my problem with awstats and what my interpretation of
the httpd_$1_content_t type is that only these files should be red by
the httpd_t directly. I think other ones will run into the same problem
too.
Any thoughts?
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Making that change would eliminate any possibility of separation of cgi
data from php data. IE If I only want my cgi scrips/processes to be
able to read my data, it ie easy to do now. But with your change, any
script that does not cause a transition can now access my data.
I would prefer an
apache_can_read(httpd_awstats_content_t)
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