CVE-2022-22881: SQL Injection in Jeecg-boot

Background

Jeecg-boot is a Maven-based package that provides a framework for developing enterprise-level applications. It offers various features and components to facilitate rapid development. However, Jeecg-boot v3.0 is vulnerable to a SQL injection attack. This vulnerability arises due to improper handling of user input in the code parameter of the /sys/user/queryUserComponentData endpoint.

Vulnerability Detail

The SQL injection vulnerability in Jeecg-boot v3.0 allows an attacker to manipulate the SQL queries executed by the application. By injecting malicious SQL code into the code parameter, an attacker can bypass input validation and gain unauthorized access to the database. This can lead to data theft, modification, or even complete compromise of the application and its underlying infrastructure. The vulnerability has a CVSS score of 9.8 (Critical).

Workaround

As a temporary workaround, it is advised to implement proper input validation and sanitization of the code parameter in the affected endpoint. This can be achieved by using parameterized queries or prepared statements to ensure that user input is treated as data and not executable code. Here is an example of how to use prepared statements in Java:

String code = request.getParameter("code");
String sql = "SELECT * FROM users WHERE code = ?";
PreparedStatement statement = connection.prepareStatement(sql);
statement.setString(1, code);
ResultSet resultSet = statement.executeQuery();
// Process the result set

By using prepared statements, the user input will be automatically escaped, preventing SQL injection attacks.

Conclusion

Jeecg-boot v3.0 is vulnerable to a critical SQL injection vulnerability. To mitigate this issue, it is crucial to update Jeecg-boot to version 3.1.0 or a secure release that includes the necessary fix. Implementing proper input validation and sanitization techniques is also advised as a temporary workaround. For further assistance or support in vulnerability remediation, please contact DevNack.com.

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