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AmnPardaz Security Research & Penetration Testing Group

Title: Jupiter Cms Multiple Vulnerabilities

Vendor: http://www.jupiterportal.com

Bugs: Local File Inclusion, Privileges Escalation

Vulnerable Version: 1.1.5ex (prior versions also may be affected)

Exploitation: Remote with browser

Exploit: Available

Fix Available: No!

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• Description:
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Quote from vendor: "Jupiter is one of the most lightweight portal
systems available and it`s open source".

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• Vulnerability:
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Improper use of extract() result in multiple vulnerability Such as LFI & PE

±->Local File Inclusion (Remote Code Execution)

Code Snippet:

/index.php line#609-615

if(isset($n))
{
if(file_exists("$n.php"))
{
if(strpos($n, "…/") !== false) header("location: $PHP_SELF?i=error");
else include("$n.php");
}

It's possible for an attacker to set $n variable! although we have a
backward directory traversal check but because of index.php exists in
the main directory of application
Attacker can upload php codes with image/gif type and include it from
images/avatars directory!

POC: http://localhost/jupiter/index.php?n=images/avatars/aa.gif%00

±->Privileges Escalation

There is a logical weakness in $db->updateRow() which could result in
privileges escalation in conjunction with extract() weakness in
profile update process.

Code Snippet:

/include/functions_db.php line#158-174

function updateRow($table,$array,$condition)
{
if(count($array)==0) return;
$q="UPDATE $table SET ";
foreach($array as $index=>$value)
{
if($value==NULL)
$q.="`$index`=NULL, ";
else
{
$value=mysql_escape_string($value);
$q.="`$index`='$value', ";
}
}
$q=substr($q,0,-2)." WHERE $condition LIMIT 1";
$this->query($q);
}

/modules/panel.php line#328-344

            $tmp['email'] = $editemail;
            $tmp['url'] = $editurl;
            $tmp['flag'] = $editflag;
            $tmp['location'] = $editlocation;
            $tmp['age'] = $editage;
            $tmp['hideemail'] = $edithideemail;
            $tmp['calendarbday'] = $editcalendarbday;
            $tmp['msn'] = $editmsn;
            $tmp['yahoo'] = $edityahoo;
            $tmp['icq'] = $editicq;
            $tmp['aim'] = $editaim;
            $tmp['skype'] = $editskype;
            $tmp['signature'] = $editsignature;
            $tmp['aboutme']= $editaboutme;
            $tmp['templates']= $edittemplate;

            $db->updateRow("users",$tmp,"id={$user['id']}");

$tmp[authorization] which handles users access level can be set at
this point with $_GET ,$_POST or $_COOCKIE because of improper use of
extract();

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• PoC :
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  http://www.bugreport.ir/?/23/exploit
  Original Advisory: http://www.bugreport.ir/?/23

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• Credit :
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  AmnPardaz Security Research & Penetration Testing Group
  Contact: admin[4t}bugreport{d0t]ir
  WwW.BugReport.ir
  WwW.AmnPardaz.com