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403 Forbidden when protocol is present in query string (eg. ?foo=http://anything)

Discussion in 'Apache' started by seifer-001, Dec 2, 2011.

  1. #1
    Hey guys
    I have been trying to figure this out for ages but I just can't.
    This used to work, but I THINK when my web host changed from Plesk to cPanel it stopped working.

    As soon as I put a protocol (http://, ftp://, etc) in a variable of a GET request, I receive a 403 forbidden error.

    Look for yourself
    drawingblacklines com.au/?foo=bar
    drawingblacklines com.au/?foo=http://testing.com
    The PHP executed on this page is simply print_r($_GET);

    I have tried clearing my .htaccess file and it didn't make any difference.
    I have looked everywhere but cannot find a solution

    Has anyone got an idea what may be causing this (bad) behavior??
    Thanks, Kane
     
    seifer-001, Dec 2, 2011 IP
  2. adimsh

    adimsh Greenhorn

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    #2
    Hi, it is not a bad behavior, it is an unwanted protection.

    Since you mentioned CPanel - and thanks for that- as far as I know CPanel operates mod_security2 for Apache, with very restrictive rules to protect web hosting, you can degrade the security measures however, unfortunately, I do not have such experience with mod_security for CPanel, you have to google it or request support from your hosting provider.

    Edit: you also have to fix errors with your ErrorDocument directive (probably a file location error).
     
    Last edited: Dec 4, 2011
    adimsh, Dec 4, 2011 IP