Brilliance Golden Link Secondary System SQL Injection Vulnerability

A critical SQL injection vulnerability has been identified in the Brilliance Golden Link Secondary System, specifically in versions prior to 20250424. The issue arises in the file '/reprotframework/tcCustDeferPosiQuery.htm', where the 'custTradeId' argument can be manipulated to execute unauthorized SQL commands. This vulnerability can be exploited remotely, and details of the exploit have been publicly disclosed.

Impact

Exploitation of this vulnerability allows for SQL injection, where an attacker can interfere with the application's database queries. This could lead to unauthorized data access, data manipulation, or in some cases, executing administrative operations on the database.

Reproduction

To reproduce this vulnerability, send a request to the '/reprotframework/tcCustDeferPosiQuery.htm' endpoint with a crafted 'custTradeId' parameter that includes SQL injection payloads. The injection can be verified by observing the application's response, which may indicate successful exploitation, such as returning database information or application data that should not be accessible.