CVE-2019-7865 in Magento
Summary
by MITRE
A cross-site request forgery (CSRF) vulnerability exists in the checkout cart item of Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2. This could be exploited at the time of editing or configuration.
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Analysis
by VulDB Data Team • 07/19/2020
This cross-site request forgery vulnerability in Magento commerce platforms represents a critical security flaw that allows attackers to perform unauthorized actions on behalf of authenticated users. The vulnerability specifically affects the checkout cart item functionality within the Magento 2.1, 2.2, and 2.3 product lines, with affected versions prior to the respective patches of 2.1.18, 2.2.9, and 2.3.2. The flaw stems from insufficient validation of request origins and lacks proper anti-CSRF token implementation in the cart modification endpoints, making it particularly dangerous in e-commerce environments where financial transactions occur.
The technical implementation of this vulnerability exposes the core cart management functionality to malicious exploitation through crafted requests that appear legitimate to the web application. Attackers can construct malicious web pages or emails that, when visited by an authenticated user, automatically submit requests to modify cart contents, change item quantities, or alter checkout configurations without the user's knowledge or consent. This type of vulnerability maps directly to CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in web applications. The attack vector typically involves social engineering techniques where victims are tricked into visiting malicious websites while maintaining an active session with the vulnerable Magento instance, thereby enabling the exploitation of the CSRF flaw.
The operational impact of this vulnerability extends beyond simple cart manipulation to potentially compromise the entire e-commerce transaction process and customer data integrity. An attacker could exploit this vulnerability to modify product prices, add unauthorized items to carts, or even redirect customers to malicious sites during checkout processes. The implications are particularly severe in retail environments where customers might be logged in and actively using the shopping cart functionality, as the attack can occur without any visible indication to the user. This vulnerability aligns with ATT&CK technique T1531 which describes the use of malicious web content to exploit web application vulnerabilities, and represents a significant risk to business continuity and customer trust in online commerce platforms.
Organizations should immediately implement the vendor-provided security patches for their respective Magento versions to remediate this vulnerability. Additional mitigations include implementing robust CSRF token validation mechanisms, ensuring proper origin validation for all critical endpoints, and conducting comprehensive security testing of web applications. Security teams should also consider implementing web application firewalls and monitoring for suspicious cart modification patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security practices and proper input validation in web applications, particularly those handling sensitive financial transactions and customer data.