Attack Chain

1. An unauthenticated attacker identifies the login-exec.php endpoint.
2. The attacker crafts an HTTP POST request targeting login-exec.php.
3. The attacker injects SQL code into the login and password POST parameters. Example payload: ' OR '1'='1
4. The server-side application fails to properly sanitize the input, and executes the injected SQL code.
5. The injected SQL bypasses the authentication check.
6. The attacker gains unauthorized access to the application with elevated privileges.
7. The attacker can then access sensitive data stored within the application’s database.

Impact

Successful exploitation of this vulnerability grants attackers unauthorized access to the Gate Pass Management System, potentially leading to sensitive data exposure, modification, or deletion. Given the nature of gate pass systems, this could include personal information, access logs, and security protocols, impacting both the organization and its users. The CVSS v3.1 score of 8.2 highlights the severity of the risk.

Recommendation

• Deploy the Sigma rule Detect CVE-2018-25424 Exploitation — Gate Pass Management System SQL Injection to your SIEM to detect exploitation attempts targeting the login-exec.php endpoint.
• Implement proper input validation and sanitization techniques on the login and password parameters in login-exec.php to prevent SQL injection, addressing CVE-2018-25424.
• Apply any available patches or updates for Gate Pass Management System 2.1 to remediate the vulnerability, as identified in the advisory.
• Monitor web server logs for suspicious POST requests to login-exec.php containing SQL injection payloads, based on the attack chain described above.