CVE-2006-1954 in RechnungsZentrale
Summary
by MITRE
SQL injection vulnerability in authent.php4 in Nicolas Fischer (aka NFec) RechnungsZentrale V2 1.1.3, and possibly earlier versions, allows remote attackers to execute arbitrary SQL commands via the User field.
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Analysis
by VulDB Data Team • 06/23/2024
The vulnerability identified as CVE-2006-1954 represents a critical SQL injection flaw within the authent.php4 component of Nicolas Fischer's RechnungsZentrale V2 1.1.3 billing system. This vulnerability resides in the authentication mechanism where user input is improperly handled, creating an avenue for malicious actors to inject arbitrary SQL commands directly into the database layer. The specific exposure occurs through the User field parameter, which serves as the primary entry point for attacker exploitation. The flaw demonstrates a fundamental failure in input validation and output encoding practices that are essential for preventing unauthorized database access and data manipulation.
This vulnerability directly maps to CWE-89, which categorizes SQL injection as a weakness where untrusted data is incorporated into SQL commands without proper sanitization or parameterization. The attack vector operates through remote code execution capabilities, allowing adversaries to manipulate the underlying database structure and potentially gain administrative privileges within the system. The vulnerability affects not only the current version but also potentially earlier iterations of the RechnungsZentrale software, indicating a persistent flaw in the codebase that was not adequately addressed during development cycles. The impact extends beyond simple data theft to encompass complete system compromise through database manipulation and unauthorized access to sensitive billing information.
The operational impact of this vulnerability is severe and multifaceted, encompassing data integrity breaches, unauthorized access to customer billing records, and potential system-wide compromise. Attackers can leverage this vulnerability to extract confidential information, modify billing data, create fraudulent transactions, or even escalate privileges to gain full administrative control over the billing system. The remote nature of the exploit means that attackers do not require physical access to the system, enabling widespread exploitation from any network location. This vulnerability also aligns with ATT&CK technique T1190, which describes the use of SQL injection to gain access to databases and extract sensitive information.
Mitigation strategies for CVE-2006-1954 must prioritize immediate implementation of proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should implement strict input sanitization routines that filter and validate all user-supplied data before processing, particularly focusing on the User field parameter. The recommended approach involves adopting prepared statements and parameterized queries throughout the application code to ensure that user input cannot be interpreted as SQL commands. Additionally, implementing proper access controls and database permissions can limit the damage from successful exploitation attempts. System administrators should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious SQL injection patterns. The vulnerability highlights the critical importance of secure coding practices and regular security audits to identify and remediate such flaws before they can be exploited by malicious actors, emphasizing the need for comprehensive security training for development teams to prevent similar issues in future software releases.