CVE-2019-25508 Overview
Jettweb Php Hazir Ilan Sitesi Scripti V2 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the kat parameter. Attackers can send GET requests to the katgetir.php endpoint with malicious kat values to extract sensitive database information.
Critical Impact
Unauthenticated attackers can exploit this SQL injection vulnerability to extract sensitive data from the database, potentially including user credentials, personal information, and other confidential records.
Affected Products
- Jettweb Php Hazir Ilan Sitesi Scripti V2
Discovery Timeline
- 2026-03-12 - CVE CVE-2019-25508 published to NVD
- 2026-03-12 - Last updated in NVD database
Technical Details for CVE-2019-25508
Vulnerability Analysis
This SQL Injection vulnerability (CWE-89) exists in the katgetir.php endpoint of Jettweb Php Hazir Ilan Sitesi Scripti V2. The application fails to properly sanitize user-supplied input passed through the kat parameter before incorporating it into SQL queries. This allows attackers to inject arbitrary SQL commands that are then executed by the database server.
The vulnerability is particularly severe because it requires no authentication to exploit. Any remote attacker with network access to the vulnerable application can craft malicious requests to manipulate database queries. The attack surface is accessible via simple HTTP GET requests, making exploitation straightforward with commonly available tools.
Root Cause
The root cause of this vulnerability is improper input validation and the lack of parameterized queries in the katgetir.php script. User input from the kat GET parameter is directly concatenated into SQL query strings without any sanitization, escaping, or use of prepared statements. This classic SQL injection pattern allows attackers to break out of the intended query context and inject their own SQL commands.
Attack Vector
The vulnerability is exploited via network-based HTTP GET requests targeting the katgetir.php endpoint. An attacker crafts a malicious URL containing SQL injection payloads in the kat parameter. When the server processes this request, the injected SQL code is executed against the backend database, potentially allowing the attacker to:
- Extract sensitive data from database tables
- Enumerate database schema and structure
- Modify or delete existing records
- Bypass authentication mechanisms
- In some configurations, execute operating system commands
The attack does not require any user interaction or authentication, and can be performed remotely by any attacker who can reach the vulnerable web application.
Detection Methods for CVE-2019-25508
Indicators of Compromise
- Unusual or malformed HTTP GET requests to katgetir.php containing SQL syntax in the kat parameter
- Web server access logs showing requests with SQL keywords such as UNION, SELECT, OR 1=1, or comment sequences like -- or /*
- Database error messages appearing in web responses or application logs indicating query syntax errors
- Unexpected database queries or data extraction patterns in database audit logs
Detection Strategies
- Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests
- Implement signature-based detection for known SQL injection attack strings targeting the kat parameter
- Monitor web server logs for suspicious request patterns to katgetir.php with encoded or plaintext SQL injection payloads
- Enable database query logging and alert on queries containing unexpected syntax or unauthorized table access
Monitoring Recommendations
- Enable detailed access logging on web servers hosting the vulnerable application
- Configure alerting for repeated requests to katgetir.php from the same source IP
- Monitor database audit logs for unusual query patterns or unauthorized data access
- Implement network traffic analysis to detect potential data exfiltration following successful exploitation
How to Mitigate CVE-2019-25508
Immediate Actions Required
- Restrict network access to the vulnerable katgetir.php endpoint using firewall rules or access controls
- Deploy a Web Application Firewall (WAF) configured to block SQL injection attack patterns
- Consider taking the vulnerable application offline until a proper fix can be implemented
- Review database access logs to identify any potential prior exploitation attempts
Patch Information
No official vendor patch information is currently available for this vulnerability. Organizations using Jettweb Php Hazir Ilan Sitesi Scripti V2 should implement the workarounds listed below and consider replacing the vulnerable software with a maintained alternative. For additional technical details, refer to the VulnCheck Advisory on SQL Injection and Exploit-DB #46606.
Workarounds
- Implement input validation to restrict the kat parameter to expected numeric or alphanumeric values only
- Modify the vulnerable code to use parameterized queries or prepared statements instead of string concatenation
- Deploy a WAF with SQL injection detection rules in front of the vulnerable application
- Restrict access to katgetir.php to trusted IP addresses or authenticated users only
- Consider migrating to a different, actively maintained classified ads script solution
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
