CVE-2019-25335: PRO-7070 Auth Bypass Vulnerability

CVE-2019-25335 Overview

CVE-2019-25335 is a SQL Injection vulnerability affecting PRO-7070 Hazır Profesyonel Web Sitesi version 1.0. This authentication bypass vulnerability exists in the administration panel login page, allowing attackers to bypass authentication entirely by using specially crafted SQL injection payloads as both username and password credentials. By submitting '=' 'or' as input values, unauthenticated attackers can gain unauthorized access to the administrative interface, potentially leading to full system compromise.

Critical Impact

Unauthenticated attackers can bypass authentication and gain administrative access to the web application, potentially compromising sensitive data and gaining full control over the website.

Affected Products

• PRO-7070 Hazır Profesyonel Web Sitesi version 1.0
• Turkish professional website template system
• Administration panel login component

Discovery Timeline

• 2026-02-12 - CVE CVE-2019-25335 published to NVD
• 2026-02-12 - Last updated in NVD database

Technical Details for CVE-2019-25335

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists due to improper input validation in the administration panel login functionality. The application fails to properly sanitize or parameterize user-supplied input in the authentication query, allowing attackers to manipulate the SQL logic to bypass credential verification entirely.

The vulnerability is exploitable over the network without requiring any prior authentication or user interaction. An attacker can craft malicious input that alters the intended SQL query structure, causing the authentication check to always evaluate as true regardless of the actual credentials stored in the database.

Root Cause

The root cause of this vulnerability is the direct concatenation of user-supplied input into SQL queries without proper sanitization, parameterization, or prepared statements. The login form accepts username and password fields and incorporates them directly into an authentication SQL query. When special SQL characters and operators like '=' 'or' are submitted, they modify the query logic to bypass the authentication mechanism.

Attack Vector

The attack is network-based and requires no authentication. An attacker navigates to the administration panel login page and enters the SQL injection payload '=' 'or' in both the username and password fields. This payload manipulates the underlying SQL query to return a true condition, granting access to the administrative interface without valid credentials.

The exploitation requires no special tools or skills—simply entering the malicious string into the login form fields triggers the bypass. Once administrative access is obtained, attackers can modify website content, access sensitive data, upload malicious files, or pivot to attack other systems.

Detection Methods for CVE-2019-25335

Indicators of Compromise

• Login attempts containing SQL operators such as OR, '=', and quote characters in authentication fields
• Successful administrative logins from unfamiliar IP addresses or geographic locations
• Web server logs showing unusual characters in POST data to login endpoints
• Unauthorized modifications to website content or administrative settings

Detection Strategies

• Deploy web application firewall (WAF) rules to detect and block common SQL injection patterns in login forms
• Implement intrusion detection system (IDS) signatures targeting SQL injection payloads in HTTP POST requests
• Monitor authentication logs for anomalous login patterns and successful logins with suspicious input values
• Enable verbose logging on the administration panel to capture all authentication attempts

Monitoring Recommendations

• Review web server access logs regularly for requests to the administration login page containing special characters
• Set up alerts for successful administrative logins outside of normal business hours or from unexpected locations
• Monitor database query logs for authentication queries with abnormal structure or unexpected boolean conditions
• Implement real-time alerting on web application firewall rule matches related to SQL injection attempts

How to Mitigate CVE-2019-25335

Immediate Actions Required

• Restrict access to the administration panel by IP whitelist or VPN requirement immediately
• Implement a web application firewall (WAF) with SQL injection protection rules in front of the application
• Review administrative access logs for signs of prior exploitation and unauthorized access
• Consider taking the administrative interface offline until a proper fix can be implemented

Patch Information

No vendor patch information is currently available in the CVE data. Organizations using PRO-7070 Hazır Profesyonel Web Sitesi version 1.0 should contact the vendor directly for remediation guidance or consider migrating to an alternative platform with proper security practices.

For additional technical details, refer to the Exploit-DB #47758 entry and the Vulncheck Security Advisory.

Workarounds

• Implement IP-based access restrictions to limit administration panel access to trusted networks only
• Deploy a reverse proxy with SQL injection filtering capabilities in front of the application
• Add server-side input validation to reject inputs containing SQL operators and special characters
• Consider implementing two-factor authentication as an additional layer of protection

# Example: Apache .htaccess IP restriction for admin panel
<Directory "/path/to/admin">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Directory>