From: kkrusteff at intergenia dot de
Operating system: linux
PHP version: 4.3.10
PHP Bug Type: Unknown/Other Function
Bug description: security bug
Description:
------------
Frequently used way to include lang file
include("./lang/login.php.$_REQUEST["lang"]);
The problem is if in URL use lang=../../../../../../../../../../etc/hosts
and we get the host file from computer.
Reproduce code:
---------------
<?PHP
include("./lang/login.php.../../../../../../../../../../etc/hosts");
?>
//or
<?php
include("./lang/login.php.../../../../../../../../../etc/hosts");
?>
//that's will show the host file
Expected result:
----------------
file not found
Actual result:
--------------
that's will show the host file or other file .. if you know the path
--
Edit bug report at http://bugs.php.net/?id=32836&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=32836&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=32836&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=32836&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=32836&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=32836&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=32836&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=32836&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=32836&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=32836&r=support
Expected behavior: http://bugs.php.net/fix.php?id=32836&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=32836&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=32836&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=32836&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=32836&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=32836&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=32836&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=32836&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=32836&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=32836&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=32836&r=mysqlcfg
