Yonyou KSOA SQL Injection Vulnerability in Work Report JSP File

A SQL injection vulnerability has been identified in Yonyou KSOA version 9.0. The issue arises in the '/worksheet/work_report.jsp' file, where the application improperly handles the 'id' parameter in HTTP GET requests. This lack of validation allows unauthenticated remote attackers to inject malicious SQL commands, potentially leading to unauthorized database access, data manipulation, or exploitation of the database server. The vulnerability is specific to environments using Microsoft SQL Server.

Impact

Exploitation of this vulnerability allows for SQL injection, enabling attackers to manipulate database queries. This could result in unauthorized access to the database, leakage of sensitive information, tampering with data, or gaining administrative control over the database server.

Reproduction

The vulnerability can be reproduced by sending a GET request to 'work_report.jsp' with a crafted 'id' parameter that includes SQL injection payloads. This can be automated using tools like SQLMap, targeting the Microsoft SQL Server database.

Remediation

It is recommended to use prepared statements for database queries to prevent SQL injection. Input validation should be implemented to ensure that the 'id' parameter only contains expected values. Additionally, deploying a Web Application Firewall (WAF) could help block SQL injection attempts.