Magento <= 1.9.2 (catalogProductCreate) Autoloaded File Inclusion Vulnerability

• Software Link:

http://magento.com/

• Affected Versions:

Version 1.9.2 and prior versions.

• Vulnerability Description:

The vulnerability is caused by the “catalogProductCreate” SOAP API implementation, which is defined into the /app/code/core/Mage/Catalog/Model/Product/Api/V2.php script:

    public function create($type, $set, $sku, $productData, $store = null)
    {
        if (!$type || !$set || !$sku) {
            $this->_fault('data_invalid');
        }

        $this->_checkProductTypeExists($type);
        $this->_checkProductAttributeSet($set);

        /** @var $product Mage_Catalog_Model_Product */
        $product = Mage::getModel('catalog/product');
        $product->setStoreId($this->_getStoreId($store))
            ->setAttributeSetId($set)
            ->setTypeId($type)
            ->setSku($sku);

        if (!property_exists($productData, 'stock_data')) {
            //Set default stock_data if not exist in product data
            $_stockData = array('use_config_manage_stock' => 0);
            $product->setStockData($_stockData);
        }

User input passed through the “productData” SOAP parameter is not properly validated before being used in a call to the “property_exists()” function at line 125. This can be exploited by attackers with valid API credentials to include and execute arbitrary PHP code (both from local or remote resources) leveraging the Varien_Autoload::autoload() autoloading function. Successful exploitation of this vulnerability requires the application running on PHP before version 5.4.24 or 5.5.8.

• Solution:

Update to version 1.9.2.1 or apply the SUPEE-6482 patch bundle.

• Disclosure Timeline:

[27/02/2015] – Vendor notified
[25/06/2015] – Vendor acknowledgement stating the issue will be fixed in the next release
[04/08/2015] – Version 1.9.2.1 released along with the patch for this vulnerability
[13/08/2015] – CVE number requested
[17/08/2015] – CVE number assigned
[11/09/2015] – Public disclosure

• CVE Reference:

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2015-6497 to this vulnerability.

• Credits:

Vulnerability discovered by Egidio Romano.