CVE-2004-1962 in Protector System
Summary
by MITRE
SQL injection vulnerability in index.php in Protector System 1.15b1 allows remote attackers to bypass SQL injection filters by using "/**/" sequences in the targeted fields.
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Analysis
by VulDB Data Team • 06/03/2025
The vulnerability described in CVE-2004-1962 represents a critical security flaw in the Protector System version 1.15b1, specifically within the index.php component. This SQL injection vulnerability arises from inadequate input validation and filtering mechanisms that fail to properly sanitize user-supplied data before processing. The flaw allows malicious actors to bypass existing SQL injection protection measures through the strategic use of comment sequences in their attack payloads.
The technical implementation of this vulnerability stems from the system's insufficient handling of SQL comment syntax within input validation routines. When attackers submit malicious input containing "/**/" sequences, these comment markers effectively neutralize the SQL injection filters that are designed to detect and block harmful SQL commands. This bypass technique exploits the fact that database parsers treat these comment sequences as valid SQL syntax elements that can be used to mask malicious payloads. The vulnerability specifically affects the index.php file which serves as a primary entry point for user interactions, making it a critical component for exploitation.
From an operational perspective, this vulnerability presents a significant risk to system integrity and data confidentiality. Attackers can leverage this weakness to execute arbitrary SQL commands against the underlying database, potentially gaining unauthorized access to sensitive information, modifying or deleting critical data, and even escalating privileges within the system. The bypass mechanism makes this vulnerability particularly dangerous as it circumvents standard security controls that would normally detect and prevent SQL injection attempts. Organizations relying on Protector System 1.15b1 face substantial risk of data breaches and system compromise if this vulnerability remains unpatched.
The security implications of CVE-2004-1962 align with CWE-89, which classifies SQL injection vulnerabilities as a fundamental weakness in application security. This vulnerability also maps to several ATT&CK techniques including T1071.004 for application layer protocol usage and T1046 for network service scanning. The bypass technique using comment sequences demonstrates a sophisticated understanding of database parsing behavior and represents an advanced evasion method that attackers often employ to circumvent basic security controls. Organizations should implement comprehensive input validation, utilize parameterized queries, and deploy proper SQL injection protection mechanisms to address this vulnerability. Regular security assessments and code reviews are essential to identify similar bypass techniques that may exist in legacy systems and ensure robust protection against evolving attack vectors.