Source: disclosure@vulncheck.com
Web Ofisi Firma Rehberi v1 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through GET parameters. Attackers can send requests to with malicious payloads in the 'il', 'kat', or 'kelime' parameters to extract sensitive database information or perform time-based blind SQL injection attacks.
Unauthenticated attackers can exploit a critical SQL injection vulnerability in Web Ofisi Firma Rehberi v1 to gain unauthorized access to sensitive database information. This vulnerability allows attackers to manipulate database queries via crafted GET requests, potentially leading to data breaches and system compromise.
Step 1: Identify Vulnerable Parameters: The attacker identifies the 'il', 'kat', and 'kelime' GET parameters as potential injection points.
Step 2: Craft Malicious Payload: The attacker constructs a malicious SQL payload designed to extract data, bypass authentication, or execute commands. This payload is designed to be injected into one of the identified parameters.
Step 3: Send Exploitation Request: The attacker sends a specially crafted HTTP GET request to the vulnerable application, including the malicious SQL payload within the 'il', 'kat', or 'kelime' parameter.
Step 4: Server-Side Query Execution: The application receives the request and incorporates the attacker's payload directly into an SQL query without proper sanitization.
Step 5: Database Interaction: The database server executes the modified SQL query, which now includes the attacker's malicious code.
Step 6: Data Extraction/Manipulation: Depending on the payload, the attacker can extract sensitive data (e.g., usernames, passwords, customer information), modify existing data, or potentially gain control of the database server.
The vulnerability stems from a lack of proper input validation and sanitization of user-supplied data within the Web Ofisi Firma Rehberi v1 application. Specifically, the application directly incorporates user input from the 'il', 'kat', and 'kelime' GET parameters into SQL queries without any filtering or escaping. This allows an attacker to inject malicious SQL code, altering the intended query logic. The root cause is a failure to implement parameterized queries or other secure coding practices to prevent SQL injection. The absence of input validation allows for the execution of arbitrary SQL commands, enabling attackers to extract, modify, or delete data within the database. The flawed implementation of database interaction is the core of the problem.
While no specific APTs are directly linked to this CVE, SQL injection vulnerabilities are commonly exploited by various threat actors, including those involved in financially motivated attacks (e.g., data theft, ransomware) and nation-state actors seeking to compromise systems for espionage or disruption. CISA KEV status: Likely not present due to the age of the CVE and the specific product's likely limited use.
Network Intrusion Detection Systems (NIDS) configured to detect SQL injection attempts, specifically looking for common SQL keywords (e.g., 'SELECT', 'UNION', 'WHERE', 'DROP') in HTTP GET parameters.
Web Application Firewalls (WAFs) configured to block SQL injection attacks by inspecting and filtering malicious payloads in HTTP requests.
Reviewing web server access logs for suspicious activity, such as unusual HTTP requests with long or complex query strings containing SQL keywords.
Database activity monitoring to detect unusual queries or access patterns, such as unauthorized data access or modification attempts.
File integrity monitoring to detect changes to web application files that could indicate compromise.
Implement parameterized queries or prepared statements to prevent SQL injection. This separates the SQL code from the user-supplied data, ensuring that user input is treated as data and not as executable code.
Sanitize and validate all user-supplied input. This involves filtering or escaping special characters that could be used in SQL injection attacks.
Apply the principle of least privilege. The database user account used by the web application should have only the necessary permissions to perform its tasks.
Regularly update the web application and all associated libraries and frameworks to patch known vulnerabilities.
Implement a Web Application Firewall (WAF) to filter malicious traffic and protect against SQL injection attacks.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.