CVE-2020-22204 in EcShop
Summary
by MITRE • 06/17/2021
SQL Injection in ECShop 2.7.6 via the goods_number parameter to flow.php. .
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Analysis
by VulDB Data Team • 06/21/2021
The vulnerability identified as CVE-2020-22204 represents a critical sql injection flaw discovered in ECShop version 2.7.6, specifically within the flow.php script. This vulnerability manifests through the improper handling of the goods_number parameter, which allows malicious actors to inject arbitrary sql commands into the application's database layer. The flaw exists due to insufficient input validation and sanitization mechanisms that fail to properly escape or parameterize user-supplied data before incorporating it into sql queries. This type of vulnerability falls under the category of CWE-89 sql injection as defined by the common weakness enumeration, which classifies it as a direct injection of sql commands into database queries. The attack vector specifically targets the flow.php endpoint which likely processes shopping cart operations or inventory management functions where the goods_number parameter is utilized to track product quantities or perform related database operations.
The operational impact of this vulnerability extends beyond simple data exfiltration, as it provides attackers with the capability to manipulate, modify, or delete database records within the ECShop application. Successful exploitation could enable unauthorized users to access sensitive customer information, manipulate inventory data, modify product listings, or even escalate privileges within the database system. The vulnerability's severity is compounded by the fact that it affects a core e-commerce functionality, potentially allowing attackers to compromise the entire online store's database integrity. From an attacker's perspective, this flaw represents a high-value target as it directly impacts business operations and customer data security. The vulnerability aligns with ATT&CK technique T1071.004 application layer protocol tunneling, as the sql injection attack operates through legitimate application interfaces while exploiting weak input validation controls.
Mitigation strategies for CVE-2020-22204 require immediate implementation of proper input validation and parameterized query execution throughout the ECShop codebase. Organizations should implement prepared statements or parameterized queries for all database interactions, particularly those involving user-supplied parameters like goods_number. The recommended approach includes sanitizing all input data through whitelisting validation, implementing proper escape sequences for special sql characters, and ensuring that the application follows secure coding practices. Additionally, implementing web application firewalls and input filtering mechanisms can provide additional layers of protection against such attacks. Regular security audits and code reviews should be conducted to identify similar vulnerabilities across other parameters and endpoints within the application. The fix should also include implementing proper error handling that prevents database error messages from being exposed to end users, as these can provide attackers with valuable information about the database structure and query execution patterns. System administrators should also consider implementing database access controls and monitoring mechanisms to detect unusual query patterns that might indicate sql injection attempts.