CVE-2020-21809 in NukeViet
Summary
by MITRE • 07/30/2021
SQL Injection vulnerability in NukeViet CMS module Shops 4.0.29 and 4.3 via the (1) listid parameter in detail.php and the (2) group_price or groupid parameters in search_result.php.
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Analysis
by VulDB Data Team • 08/05/2021
The SQL injection vulnerability identified as CVE-2020-21809 affects the NukeViet CMS Shops module version 4.0.29 and 4.3, representing a critical security flaw that enables unauthorized database access through malicious input manipulation. This vulnerability stems from insufficient input validation and sanitization within the module's handling of user-supplied parameters, creating an avenue for attackers to execute arbitrary SQL commands against the underlying database system. The affected parameters include listid in detail.php and group_price or groupid in search_result.php, all of which are processed without adequate security measures to prevent malicious SQL code injection.
The technical implementation of this vulnerability allows an attacker to manipulate database queries by injecting malicious SQL syntax through the vulnerable parameters. When the application processes these parameters in the specified PHP files, it directly incorporates user input into SQL statements without proper escaping or parameterization, leading to potential database compromise. The CWE-89 classification applies here, as this represents a classic SQL injection vulnerability where untrusted data flows into SQL command construction. Attackers can exploit this flaw to extract sensitive information, modify database contents, or potentially escalate privileges within the application's database environment.
The operational impact of this vulnerability extends beyond simple data theft, as it can enable complete database compromise and unauthorized access to sensitive customer information, product data, and administrative credentials. The Shops module in NukeViet CMS typically handles commerce-related data including product catalogs, pricing information, and customer records, making this vulnerability particularly dangerous for e-commerce environments. An attacker exploiting this vulnerability could access customer personal information, purchase histories, and financial data, potentially leading to identity theft, fraud, and significant financial losses for affected organizations. The vulnerability also poses risks to system availability and integrity through potential data corruption or unauthorized modifications to the database structure.
Mitigation strategies for CVE-2020-21809 should prioritize immediate patching of the affected NukeViet CMS Shops module versions, with administrators urgently upgrading to patched releases that implement proper input validation and parameterized queries. The recommended defensive measures include implementing proper input sanitization techniques, using prepared statements with parameterized queries, and applying input validation filters that reject malicious SQL characters. Organizations should also implement web application firewalls to detect and block SQL injection attempts, conduct regular security audits of web applications, and establish proper access controls to limit database privileges. Additionally, the ATT&CK framework's T1190 technique for SQL injection should be considered in threat modeling, as this vulnerability aligns with the tactics used by adversaries to compromise database systems through application-level attacks. Regular security testing including automated vulnerability scanning and manual penetration testing should be implemented to identify similar vulnerabilities in other application components and ensure comprehensive protection against similar threats.