CVE-2021-35458 in Online Pet Shop We App
Summary
by MITRE • 07/30/2021
Online Pet Shop We App 1.0 is vulnerable to Union SQL Injection in products.php (aka p=products) via the c or s parameter.
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Analysis
by VulDB Data Team • 08/05/2021
The vulnerability identified as CVE-2021-35458 affects the Online Pet Shop We App version 1.0, specifically targeting the products.php script which handles product listings and related functionality. This application appears to be a web-based platform for pet-related products, where the c and s parameters are used to filter and sort product categories and search results. The vulnerability manifests as a SQL injection flaw that allows attackers to manipulate database queries through improper input validation. The affected parameters c and s are directly incorporated into SQL queries without adequate sanitization or parameterization, creating an exploitable path for malicious input injection.
This SQL injection vulnerability falls under the CWE-89 category, which classifies it as a classic SQL injection attack vector where user-supplied input is concatenated directly into SQL commands. The attack surface is particularly concerning as it affects the core product browsing functionality of the application, potentially allowing attackers to extract sensitive database information including user credentials, product inventories, pricing details, and other business-critical data. The vulnerability is classified as a union-based SQL injection since the attacker can leverage union clauses to combine their malicious query with legitimate database queries, thereby retrieving unauthorized data through the application's response.
The operational impact of this vulnerability extends beyond simple data theft, as it provides attackers with the capability to perform unauthorized database operations including data modification, deletion, and potentially system compromise through database-level commands. Attackers can exploit this vulnerability to enumerate database schemas, extract user account information, and potentially escalate privileges within the database environment. The affected application's lack of proper input validation and sanitization creates a persistent risk that could be exploited by automated scanning tools or determined attackers. This vulnerability directly maps to several ATT&CK techniques including T1071.004 for application layer protocol manipulation and T1213.002 for data from information repositories, representing significant threats to the application's integrity and data confidentiality.
Mitigation strategies should focus on implementing proper parameterized queries or prepared statements to eliminate the SQL injection vector entirely. Input validation and sanitization should be enforced at multiple layers including application-level filters, database-level access controls, and web application firewalls. The application should implement proper error handling to prevent information disclosure through database error messages that could aid attackers in crafting more sophisticated attacks. Additionally, the principle of least privilege should be enforced for database connections, limiting the database user's permissions to only those required for normal application operations. Regular security testing including automated scanning and manual penetration testing should be conducted to identify similar vulnerabilities in other application components. The application development team must follow secure coding practices as outlined in OWASP Top Ten and NIST guidelines, ensuring that all user inputs are properly validated and escaped before being processed by the database layer.