Mallbuilder is a multi-user online shopping mall platform developed with PHP and MySQL. It is designed to facilitate the creation of feature-rich e-commerce sites similar to well-known platforms such as JD.com or Tmall. The system is utilized by enterprises seeking scalable and customizable solutions for industry-specific, localized, or vertical online shopping needs. It supports quick deployment and offers multiple customization options to meet various business requirements. This platform provides essential tools for businesses to launch and manage their online stores efficiently.
The SQL Injection vulnerability is a severe security flaw affecting the 'username' parameter in the product/admin/user_order module of Mallbuilder. This vulnerability allows malicious individuals to execute arbitrary SQL code in the database by injecting crafted SQL queries. It can lead to unauthorized data manipulation, including viewing, adding, or deleting data. Such vulnerabilities are critical as they jeopardize the confidentiality, integrity, and availability of data within the affected application. The presence of this vulnerability compromises the security and trustworthiness of the Mallbuilder platform.
Technically, this vulnerability is due to improper handling of user input in the 'username' parameter within the admin module. Attackers can exploit this flaw by sending specially crafted SQL payloads in HTTP requests to manipulate database operations. The vulnerable endpoint is '/?m=product&s=admin/user_order' where the 'username' parameter is directly incorporated into SQL statements without sufficient validation or sanitization. This lack of input validation results in the possibility of SQL injection attacks, paving the way for unauthorized database access and manipulation.
Exploiting this vulnerability can have severe consequences including unauthorized access to sensitive data, loss of data integrity, and potential disruption of service. Attackers could extract sensitive customer information, tamper with financial records, or even escalate their privileges within the application. Additionally, compromised data integrity can lead to loss of customer trust and potential legal repercussions for the business. Proper measures must be taken to address this vulnerability and protect the application's data assets.
REFERENCES
- Download and apply the latest patches or version from the official Mallbuilder website.
- Integrate parameterized queries and prepared statements to sanitize user inputs.
- Implement data input validation and enforce strict data type checks across all user inputs.
- Limit the length of input fields to reduce the risk of exploitation through long SQL payloads.
- Use UTF-8 encoding strictly across all data processes to prevent encoding-based bypasses.
- Apply the principle of least privilege to database users, restricting access rights comprehensively.
- Suppress detailed SQL error messages to avoid revealing information about the query structure.
- Implement regex-based filters to block SQL keywords such as ‘union’, ‘select’, and ‘load_file’.
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