CVE-2018-25167 in Billetterie
Summary
by MITRE • 03/06/2026
Net-Billetterie 2.9 contains an SQL injection vulnerability in the login parameter of login.inc.php that allows unauthenticated attackers to execute arbitrary SQL queries. Attackers can submit malicious SQL code through the login POST parameter to extract database information including usernames, passwords, and system credentials.
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Analysis
by VulDB Data Team • 03/06/2026
The vulnerability identified as CVE-2018-25167 represents a critical SQL injection flaw within the Net-Billetterie 2.9 web application that directly impacts the authentication mechanism. This vulnerability exists in the login.inc.php file where the login parameter is processed without adequate input validation or sanitization, creating an exploitable entry point for malicious actors. The flaw specifically affects the POST parameter handling during the login process, allowing attackers to inject malicious SQL code that bypasses normal authentication procedures. The vulnerability is particularly dangerous because it does not require authentication to exploit, making it accessible to any attacker who can submit requests to the affected application.
The technical implementation of this vulnerability stems from improper parameter handling within the application's database interaction logic. When the login POST parameter is submitted, the application directly incorporates user input into SQL query construction without proper escaping or parameterization techniques. This violates fundamental security principles outlined in CWE-89, which categorizes SQL injection as a critical weakness in application security. The vulnerability enables attackers to manipulate database queries through crafted input, allowing them to extract sensitive information including but not limited to user credentials, system configuration details, and potentially administrative access tokens. The attack vector is particularly efficient as it leverages the standard login functionality that is typically always accessible to users.
The operational impact of this vulnerability extends beyond simple credential theft to encompass comprehensive database compromise and potential system infiltration. Attackers can leverage this vulnerability to perform UNION-based SQL injection attacks, enabling them to extract data from multiple database tables through a single malicious request. The extracted information could include hashed passwords, user session tokens, and other sensitive system credentials that could be used for lateral movement within networks or for privilege escalation attacks. This vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and T1046 which covers network service scanning, as attackers could use the extracted credentials to map network services and establish persistent access. The vulnerability also creates opportunities for data exfiltration and potential system disruption through database manipulation or deletion operations.
Mitigation strategies for CVE-2018-25167 should prioritize immediate application patching and input validation implementation. Organizations must implement proper parameterized queries or prepared statements to prevent SQL injection attacks, ensuring that all user input is properly escaped or validated before database interaction. The application should enforce strict input validation on the login parameter, rejecting malformed or suspicious inputs that could indicate injection attempts. Network-level protections such as web application firewalls and intrusion detection systems should be configured to monitor for SQL injection patterns and block malicious requests. Additionally, access controls should be implemented to limit database access permissions for the application user, following the principle of least privilege to minimize potential damage from successful exploitation. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other application components, with particular attention to any legacy code that may not follow current security best practices. The vulnerability demonstrates the critical importance of secure coding practices and input sanitization in preventing database-level attacks that can compromise entire system infrastructures.