CVE-2005-3874 in Netzbrett
Summary
by MITRE
SQL injection vulnerability in netzbr.php in Netzbrett 1.5.1 and earlier allows remote attackers to execute arbitrary SQL commands via the p_entry parameter in an entry command to index.php.
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Analysis
by VulDB Data Team • 08/26/2025
The vulnerability identified as CVE-2005-3874 represents a critical SQL injection flaw within the Netzbrett content management system version 1.5.1 and earlier. This vulnerability exists in the netzbr.php script where user input is not properly sanitized before being incorporated into SQL queries. The specific parameter affected is p_entry within the entry command of the index.php script, creating an exploitable pathway for malicious actors to manipulate database operations. The vulnerability classification aligns with CWE-89 which describes improper neutralization of special elements used in SQL commands, making it a classic example of SQL injection that has been prevalent since the early days of web application development.
The technical exploitation of this vulnerability occurs when a remote attacker crafts malicious input through the p_entry parameter, which then gets directly embedded into SQL queries without proper input validation or sanitization. This allows attackers to inject arbitrary SQL commands that can manipulate the underlying database, potentially leading to unauthorized data access, modification, or deletion. The attack vector is particularly dangerous because it requires no authentication and can be executed remotely, making it a significant threat to any system running the vulnerable Netzbrett version. The flaw demonstrates poor input handling practices that violate fundamental secure coding principles and represents a failure in the principle of least privilege within database access controls.
The operational impact of this vulnerability extends beyond simple data compromise to potentially enable complete system takeover through database manipulation. Attackers could extract sensitive information including user credentials, personal data, and system configurations stored in the database. The vulnerability also opens pathways for persistent attacks where malicious actors could establish backdoors or modify application logic through database schema alterations. Organizations running affected systems face significant risk of data breaches, regulatory compliance violations, and potential legal consequences due to the exposure of sensitive information. This vulnerability would typically be categorized under the ATT&CK technique T1071.004 for application layer protocol manipulation, demonstrating how SQL injection can be used to compromise database integrity and availability.
Mitigation strategies for CVE-2005-3874 require immediate action including upgrading to a patched version of Netzbrett, implementing proper input validation and sanitization measures, and applying parameterized queries or prepared statements to prevent SQL injection. Organizations should also implement web application firewalls and database activity monitoring to detect and prevent exploitation attempts. The remediation process must include thorough code review to identify similar vulnerabilities in other application components, as this flaw represents a systemic issue in input handling that could affect other parameters or scripts. Additionally, implementing proper access controls and database permissions can limit the damage even if exploitation occurs, ensuring that database users have minimal required privileges to reduce the potential impact of successful attacks.