Source: disclosure@vulncheck.com
WebIncorp ERP contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the prod_id parameter. Attackers can send GET requests to product_detail.php with malicious prod_id values to extract sensitive database information.
WebIncorp ERP is vulnerable to an unauthenticated SQL injection, allowing attackers to gain unauthorized access to the database. This vulnerability, exploitable via the prod_id parameter in product_detail.php, can lead to sensitive data extraction and potential system compromise.
Step 1: Request Construction: The attacker crafts a malicious GET request targeting product_detail.php. The request includes a crafted prod_id parameter containing SQL injection payload.
Step 2: Payload Delivery: The crafted prod_id value, containing SQL code, is sent to the server.
Step 3: Query Execution: The vulnerable product_detail.php script receives the prod_id value and incorporates it directly into an SQL query without proper sanitization.
Step 4: Database Manipulation: The injected SQL code is executed by the database server, allowing the attacker to perform actions such as retrieving data (e.g., SELECT statements), modifying data (e.g., UPDATE statements), or potentially executing arbitrary commands if the database user has sufficient privileges.
Step 5: Data Exfiltration: The results of the malicious SQL query, including sensitive data, are returned to the attacker in the HTTP response.
The vulnerability stems from insufficient input validation and sanitization of the prod_id parameter within the product_detail.php script. The application directly incorporates user-supplied input into SQL queries without proper escaping or filtering. This allows an attacker to inject malicious SQL code, altering the intended query logic and enabling data exfiltration, such as usernames, passwords, and other sensitive information stored within the database. The root cause is a failure to implement prepared statements or other secure methods of handling user input when constructing SQL queries. The absence of proper input validation allows for the injection of arbitrary SQL commands, leading to unauthorized database access.
While no specific APT groups are directly linked in the provided information, SQL injection vulnerabilities are commonly exploited by a wide range of threat actors, including those seeking financial gain, espionage, or disruption. CISA KEV status: Unknown (cannot be determined from provided data).
Web application firewall (WAF) logs showing suspicious SQL syntax in GET requests to product_detail.php, specifically targeting the prod_id parameter.
Database server logs indicating unusual query activity, such as unexpected SELECT statements or attempts to access sensitive tables.
Network traffic analysis revealing unusual patterns of HTTP requests to product_detail.php with potentially malicious payloads in the prod_id parameter.
Intrusion Detection System (IDS) alerts triggered by SQL injection signatures.
Examination of web server access logs for requests to product_detail.php with unusual query parameters.
Implement prepared statements or parameterized queries to prevent SQL injection. This separates the SQL code from the user-supplied input, ensuring that the input is treated as data and not as executable code.
Thoroughly validate and sanitize all user-supplied input, including the prod_id parameter. This involves filtering out or escaping special characters that could be used in SQL injection attacks.
Apply the principle of least privilege to the database user accounts used by the web application. Limit the database user's permissions to only the necessary operations.
Regularly update the WebIncorp ERP software to the latest version, which may include patches for this vulnerability.
Deploy a Web Application Firewall (WAF) to filter malicious traffic and block SQL injection attempts.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.