CVE-2020-20675 in Nuishop
Summary
by MITRE • 08/27/2021
Nuishop v2.3 contains a SQL injection vulnerability in /goods/getGoodsListByConditions/.
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Analysis
by VulDB Data Team • 09/01/2021
The vulnerability CVE-2020-20675 represents a critical SQL injection flaw within the Nuishop e-commerce platform version 2.3, specifically affecting the /goods/getGoodsListByConditions/ endpoint. This vulnerability exposes the application to unauthorized database access and potential data compromise through maliciously crafted SQL commands. The flaw resides in how the application processes user input parameters when retrieving goods listings based on various conditions, creating an avenue for attackers to manipulate database queries and extract sensitive information. Such vulnerabilities fall under CWE-89 which classifies SQL injection as a dangerous input validation flaw where untrusted data is directly incorporated into SQL command construction without proper sanitization or parameterization.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the goods listing API endpoint, allowing them to inject arbitrary SQL code that executes within the database context. This injection can potentially retrieve administrative credentials, customer personal data, product inventories, and other sensitive business information stored within the database. The vulnerability demonstrates poor input validation and inadequate query parameterization practices, which are fundamental security misconfigurations that violate secure coding principles and industry best practices. Attackers can leverage this flaw to perform unauthorized database operations including data extraction, modification, or deletion, potentially leading to complete system compromise and data breaches.
The operational impact of CVE-2020-20675 extends beyond immediate data theft to encompass broader business disruption and regulatory compliance violations. Organizations utilizing Nuishop v2.3 face potential exposure of customer databases containing personal information, financial records, and business-critical data that could be exploited for identity theft, fraud, or competitive intelligence gathering. The vulnerability creates a persistent risk that remains active until proper patching or mitigation is implemented, making it particularly dangerous for e-commerce platforms handling sensitive transactions and personal data. This type of vulnerability aligns with ATT&CK technique T1071.004 which covers application layer protocol manipulation, and T1046 which involves network service scanning that can identify vulnerable endpoints.
Security mitigation strategies for CVE-2020-20675 should prioritize immediate implementation of parameterized queries and input validation controls within the affected API endpoint. Organizations must ensure all user-supplied parameters are properly sanitized and validated before processing, implementing proper database access controls and least privilege principles. The recommended approach includes updating to the latest Nuishop version that addresses this vulnerability, implementing web application firewalls to detect and block malicious SQL injection attempts, and conducting comprehensive security testing of all API endpoints. Additionally, organizations should establish regular security assessments and vulnerability scanning procedures to identify similar weaknesses in other applications and systems. The remediation process should also include monitoring database access logs for suspicious activities and implementing proper error handling that does not reveal database structure information to unauthorized users.