Source: disclosure@vulncheck.com
Web Ofisi Emlak v2 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the 'ara' GET parameter. Attackers can send requests to with time-based SQL injection payloads to extract sensitive database information or cause denial of service.
Unauthenticated attackers can exploit a critical SQL injection vulnerability in Web Ofisi Emlak v2, allowing them to extract sensitive data, potentially leading to complete system compromise or a denial-of-service condition. This flaw stems from improper sanitization of user-supplied input within the 'ara' GET parameter, enabling malicious SQL code injection.
Step 1: Request Construction: The attacker crafts a malicious HTTP GET request targeting the vulnerable Web Ofisi Emlak v2 application. The request includes an SQL injection payload within the 'ara' parameter. For example: GET /index.php?ara=1' AND SLEEP(5) -- HTTP/1.1
Step 2: Payload Delivery: The crafted request is sent to the web server hosting the vulnerable application.
Step 3: Query Execution: The application receives the request and, due to the vulnerability, directly incorporates the attacker-supplied 'ara' parameter value into an SQL query without proper sanitization.
Step 4: SQL Injection: The malicious SQL payload is executed by the database server. In the example, the SLEEP(5) command causes a 5-second delay, confirming the time-based SQL injection.
Step 5: Data Extraction/Denial of Service: Depending on the payload, the attacker can extract sensitive data (e.g., usernames, passwords, database structure) or cause a denial-of-service by executing resource-intensive queries.
The vulnerability lies in the ara GET parameter's lack of input validation and sanitization. The application directly incorporates user-supplied data from this parameter into SQL queries without proper escaping or filtering. This allows attackers to inject malicious SQL code, manipulating the database's behavior. The root cause is a failure to implement secure coding practices, specifically failing to sanitize user input before using it in database queries. This allows for the execution of arbitrary SQL commands, enabling attackers to read, modify, or delete data, or even gain remote code execution depending on the database configuration and server environment. The lack of parameterized queries or prepared statements further exacerbates the issue.
While no specific APTs are directly linked to this CVE, the nature of SQL injection makes it a common tool for various threat actors. This vulnerability could be leveraged by both financially motivated actors (for data theft and extortion) and state-sponsored actors (for espionage or disruption). CISA KEV status is unknown due to the lack of specific details.
Web application firewall (WAF) logs showing suspicious SQL injection attempts, such as the use of keywords like 'SELECT', 'UNION', 'OR', 'AND', 'SLEEP', or comments (--) in the 'ara' parameter.
Database server logs revealing unusual query patterns or errors, especially those originating from the web application.
Network traffic analysis identifying unusual HTTP GET requests with suspicious payloads in the 'ara' parameter.
Intrusion Detection System (IDS) alerts triggered by SQL injection signatures.
File integrity monitoring detecting changes to web application files that could indicate compromise.
Implement input validation and sanitization for the 'ara' parameter. This includes escaping special characters and using a whitelist approach to restrict allowed input.
Use parameterized queries or prepared statements to prevent SQL injection vulnerabilities. This separates the SQL code from the user-supplied data.
Apply the principle of least privilege to the database user account used by the web application. Limit the account's permissions to only those necessary for its operation.
Regularly update the Web Ofisi Emlak software to the latest version or apply any available security patches.
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.
Implement strong password policies and multi-factor authentication for all user accounts.