CVE-2019-7899 in Magento
Summary
by MITRE
Names of disabled downloadable products could be disclosed due to inadequate validation of user input in Magento Open Source prior to 1.9.4.2, and Magento Commerce prior to 1.14.4.2, Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2.
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Analysis
by VulDB Data Team • 07/20/2020
This vulnerability in Magento platforms represents a critical information disclosure flaw that arises from insufficient input validation mechanisms within the downloadable product handling system. The vulnerability affects multiple versions of both Magento Open Source and Magento Commerce, spanning from the earliest releases up to specific patch levels including 1.9.4.2, 1.14.4.2, 2.1.18, 2.2.9, and 2.3.2. The core issue stems from the application's failure to properly validate user input when processing requests related to downloadable product names, particularly when these products are disabled within the system.
The technical flaw manifests when an attacker exploits the lack of proper input sanitization to access or disclose the names of downloadable products that have been disabled or removed from public view. This occurs because the system does not adequately verify whether the requested product is accessible to the current user context before returning product metadata. The vulnerability specifically impacts the product name field, allowing unauthorized disclosure of product information that should remain hidden due to the disabled status of the associated downloadable content. This represents a direct violation of the principle of least privilege and information hiding within the application's access control mechanisms.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can provide attackers with insights into the e-commerce platform's product catalog structure and potentially reveal sensitive business intelligence. Attackers can exploit this flaw to enumerate disabled products and potentially gain knowledge about product development cycles, pricing strategies, or upcoming product launches that are intentionally hidden from public access. This information disclosure can be particularly damaging in competitive business environments where product information confidentiality is crucial for maintaining market advantage.
From a cybersecurity perspective, this vulnerability maps directly to CWE-20, which describes improper input validation, and aligns with ATT&CK technique T1213.002 for Data from Information Repositories. The flaw demonstrates how inadequate validation of user-supplied data can lead to unauthorized access to restricted information, particularly when the application fails to properly authenticate and authorize access requests. Organizations should implement immediate mitigations including patching to the specified version numbers, implementing additional input validation layers, and conducting thorough security reviews of all product catalog access points. The vulnerability also highlights the importance of proper access control implementation in e-commerce platforms where sensitive product information must be protected even when products are marked as disabled or inactive.