ID:               24024
 Updated by:       [EMAIL PROTECTED]
 Reported By:      rich dot fearn at btopenworld dot com
-Status:           Open
+Status:           Bogus
 Bug Type:         Unknown/Other Function
 Operating System: Linux
 PHP Version:      4.3.1
 New Comment:

phpinfo() is a debugging function.  It is not something that should be
publically accessible.  Adding filtering to it would make it much less
useful as a debugging tool.


Previous Comments:
------------------------------------------------------------------------

[2003-06-04 12:42:54] rich dot fearn at btopenworld dot com

I've just received an e-mail about a vulnerability in the phpinfo()
function.

If phpinfo() is used in a page on a web site, a parameter containing
script can be passed to that page; that script will be executed.

For example, with the page:

<?php
phpinfo();
?>

stored as info.php, going to

http://<website>/info.php?test=<script>alert('Hello')</script>

will cause the script to be executed, resulting in a pop-up containing
the message "Hello".

The vulnerability is due to the fact that parameters are not encoded
when they are output in the 

_SERVER["argv"]

section of phpinfo()'s output. (In the other parts of the output where
parameters are displayed, < and > characters are converted to the &
entities.)

------------------------------------------------------------------------


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