Re: Newbie: Safe function call to a .inc file outside the web folder

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Is their some other reasonably safe way to call to the script outside the web folder ?
Or, is there some other secure method to get the server name?

As an alternative:
I tried using a relative path: FROM the php script location TO the fono.inc script location outside the web folder
$mypath = realpath ("../../../../../includes/fono.inc");
require_once($mypath);

although using this path worked within my ftp program...it did not work in the php script :(

I get the error:
Fatal error: main(): Failed opening required '' (include_path='.:/usr/local/lib/php') in /home/www/siren/siren/fonovisa/Library/php/genericTestv4.php on line 6



many thanks, Chris :)

g
On Aug 25, 2005, at 6:44 PM, Chris Shiflett wrote:

Graham Anderson wrote:
Is the below reasonable safe ?
I have all of my main functions outside the web folder
I am including this function with every php script that
accesses fonovisa.inc
function getBrain()
{
    $temp = explode('.', $_SERVER['SERVER_NAME']);

Because $_SERVER['SERVER_NAME'] can be manipulated by the user in some cases, you must consider $temp tainted at this point.

    $size = count($temp);
    $server = $temp[$size -2];

Now $server is tainted.

    $brainPath = "/home/".$server."/includes/fonovisa.inc";

Therefore, this is a security vulnerability.

Hope that helps.

Chris

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Chris Shiflett
Brain Bulb, The PHP Consultancy
http://brainbulb.com/

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