Source: cna@vuldb.com
A vulnerability was identified in code-projects Online Guitar Store 1.0. Affected by this issue is some unknown functionality of the file /login.php. The manipulation of the argument L_email leads to sql injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Online Guitar Store 1.0 suffers from a critical SQL injection vulnerability in /login.php, allowing attackers to remotely compromise the application's database. This flaw, stemming from improper input validation of the L_email parameter, enables unauthorized access and potential data exfiltration, posing a significant risk to user data and system integrity.
Step 1: Payload Delivery: The attacker crafts a malicious SQL injection payload designed to be injected into the L_email parameter of the /login.php file. This payload is designed to manipulate the SQL query's logic, such as retrieving sensitive data or bypassing authentication.
Step 2: Request Submission: The attacker sends a specially crafted HTTP POST or GET request to /login.php, including the malicious payload within the L_email parameter.
Step 3: Query Execution: The vulnerable application receives the request and, without proper sanitization, incorporates the attacker's payload directly into a SQL query. The application then executes this modified query against the database.
Step 4: Database Interaction: The database server interprets the injected SQL code, executing the attacker's commands. This could involve retrieving user credentials, modifying data, or even gaining control of the database server.
Step 5: Information Disclosure/System Compromise: Based on the injected SQL code, the attacker can achieve various objectives, such as retrieving sensitive information (e.g., usernames, passwords, credit card details), modifying data, or gaining unauthorized access to the system.
The vulnerability lies within the /login.php file of Online Guitar Store 1.0. The application fails to properly sanitize user-supplied input for the L_email parameter before incorporating it into a SQL query. Specifically, the application likely constructs a SQL query that includes the user-provided email address without adequate escaping or validation. This allows an attacker to inject malicious SQL code through the L_email parameter. The root cause is a lack of input validation and parameterized queries, leading to the execution of attacker-controlled SQL commands. The absence of prepared statements exacerbates the issue, making it easier to inject malicious code.
While no specific APTs are directly linked to this CVE, the ease of exploitation and public availability of exploits make it attractive to a wide range of attackers, including script kiddies and opportunistic attackers. The vulnerability could be leveraged for data theft, defacement, or as a stepping stone for further attacks. Not currently listed on CISA KEV, but the potential for exploitation warrants immediate attention.
Web server logs analysis: Examine web server access logs for suspicious activity, such as unusual HTTP requests to /login.php with long or unusual values in the L_email parameter, or requests containing SQL keywords (e.g., 'SELECT', 'UNION', 'OR').
Database query monitoring: Monitor database query logs for unusual or unexpected queries that include the L_email parameter or contain suspicious SQL syntax.
Intrusion Detection System (IDS) and Intrusion Prevention System (IPS) alerts: Implement and configure IDS/IPS rules to detect SQL injection attempts, looking for common SQL injection patterns in HTTP requests.
Web Application Firewall (WAF) logs: Analyze WAF logs for blocked requests targeting /login.php and containing SQL injection payloads.
Network traffic analysis: Inspect network traffic for unusual patterns, such as a high volume of requests to /login.php or requests containing suspicious payloads in the L_email parameter.
Implement input validation: Thoroughly validate all user-supplied input, including the L_email parameter, to ensure it conforms to the expected format and length. Reject or sanitize any input that does not meet the criteria.
Use parameterized queries or prepared statements: Employ parameterized queries or prepared statements to prevent SQL injection. This approach separates the SQL code from the user-supplied data, ensuring that the data is treated as data and not as executable code.
Apply least privilege principle: Grant database users only the minimum necessary privileges to perform their tasks. This limits the potential damage if an attacker successfully exploits the vulnerability.
Regularly update the application: Keep the Online Guitar Store software up-to-date with the latest security patches. This will address any known vulnerabilities, including this SQL injection flaw.
Implement a Web Application Firewall (WAF): Deploy a WAF to filter malicious traffic and block SQL injection attempts. Configure the WAF with rules specifically designed to detect and prevent SQL injection attacks.
Conduct security audits and penetration testing: Regularly perform security audits and penetration testing to identify and address vulnerabilities in the application.
Review and harden database server configuration: Ensure the database server is configured securely, including disabling unnecessary features and enabling security best practices.