Re: [users@httpd] Security APACHE, PHP and CGI

"Gare" <gare@xxxxxxxxxx> · Mon, 11 Apr 2005 00:48:21 +0200

By now I know that every hosted domain must have their system user, but the 

CGI security problem is the same: yopu can't restrict cgi programs to a 

folder (the home directory). Cgiwraps I've read about work assigning a user 

to the cgi program, this program run as user and not as nobody (user under 

Apache runs).

I suposse that there is only two ways: host without cgi or install a VPS

Thanks

----- Original Message ----- 

From: "Joshua Slive" <jslive@xxxxxxxxx>

To: <users@xxxxxxxxxxxxxxxx>
Sent: Saturday, April 09, 2005 9:27 PM
Subject: Re: [users@httpd] Security APACHE, PHP and CGI

On Apr 9, 2005 2:44 PM, Gare <gare@xxxxxxxxxx> wrote:

That's why I'm looking for a solution, an easy and affordable solution. 

Of

course my subdomains with a share user can't use php nor cgi.
Then if a cgi program can access all over the server (files like
/etc/passwd ), how do enterprise that provide shared hosting with
cgi/php/mysql support?

They don't share userids.

Even if I create a system user for every subdomain webserver, CGI could

access important files in the server (/etc/shadow or /etc/passwd ... ), 

or

perhaps could mod_security avoid this action?

No, they will only have access to the files that you allow them to
access.  /etc/shadow certainly wouldn't be one of those.

Another idea is to look at cgiwrap, which has a somewhat more flexible
attitude towards permission changing.

Joshua.

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