Golden Link Secondary System SQL Injection Vulnerability in tcEntrFlowSelect Interface

A critical SQL injection vulnerability has been identified in the Golden Link Secondary System, affecting versions prior to 20250424. The issue arises from an unknown processing flaw in the file /reprotframework/tcEntrFlowSelect.htm, where the custTradeId parameter can be manipulated to execute arbitrary SQL commands. This vulnerability can be exploited remotely.

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 POST request to /reprotframework/tcEntrFlowSelect.htm. Include the JSESSIONID_null_8900 cookie and set the Content-Type to application/x-www-form-urlencoded;utf-8. In the request body, add the custTradeId parameter with a value that includes SQL injection payloads. The injection point has been confirmed by using sqlmap, targeting an Oracle database.