Bug #64170 [Opn->Nab]: ECHO with a character become a backdoor
Edit report at https://bugs.php.net/bug.php?id=64170&edit=1
ID: 64170
Updated by: sixd@php.net
Reported by: yoco_smart at live dot cn
Summary: ECHO with a character become a backdoor
-Status: Open
+Status: Not a bug
Type: Bug
Package: *General Issues
Operating System: windows & linux
PHP Version: Irrelevant
Block user comment: N
Private report: N
New Comment:
Sorry, but your problem does not imply a bug in PHP itself. For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system
is not the
appropriate forum for asking support questions. Due to the volume
of reports we can not explain in detail here why your report is not
a bug. The support channels will be able to provide an explanation
for you.
Thank you for your interest in PHP.
See http://php.net/manual/en/language.operators.execution.php
Previous Comments:
------------------------------------------------------------------------
[2013-02-07 18:57:54] yoco_smart at live dot cn
Description:
------------
echo function become a backdoor.
hello, i'm YoCo,from Silic Network Solutions Company,China.
I find that some character can make the function ECHO become the backdoor, just one line!!
like this:
echo $_POST[x];
the quote character is `, not the '',it is diffrent between ' and ,is it
right?
i dont know why the `` will equal the function SYSTEM, i test it both on the windows with iis and
linux with apache,both of them are work well, however the ECHO function become a hacker's
backdoor, if some one use it, the manager hard to find it.
Test script:
---------------
<?php
/* usage: test.php?x=dir */
echo $_GET[x];
?>
Expected result:
----------------
the ECHO function becomes the SYSTEM function, just one line script.
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Edit this bug report at https://bugs.php.net/bug.php?id=64170&edit=1
Thread (2 messages)