CVE-2005-4198 in Netref
Summary
by MITRE
SQL injection vulnerability in index.php in Netref 3.0 allows remote attackers to execute arbitrary SQL commands via the cat parameter. NOTE: the provenance of this issue is unknown; the details were obtained solely from third party sources.
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Analysis
by VulDB Data Team • 08/26/2025
The vulnerability identified as CVE-2005-4198 represents a critical sql injection flaw within the Netref 3.0 content management system, specifically affecting the index.php script. This vulnerability manifests through the improper handling of user-supplied input in the cat parameter, creating an avenue for remote attackers to manipulate database queries. The issue stems from the application's failure to adequately sanitize or validate input received from external sources before incorporating it into sql command structures. The cat parameter serves as the primary attack vector, where malicious input can be crafted to alter the intended sql execution flow. This type of vulnerability falls under the common weakness enumeration CWE-89 which specifically addresses sql injection vulnerabilities. The attack surface is particularly concerning as it allows for complete database compromise without requiring authentication or privileged access. The vulnerability's classification as remote indicates that attackers can exploit this flaw from external networks without needing physical access to the system. This characteristic significantly amplifies the potential impact and attack surface compared to local vulnerabilities. The exploitation of this vulnerability can lead to unauthorized data access, data modification, or complete database destruction depending on the attacker's objectives and the system's configuration. The fact that this vulnerability was sourced from third-party information rather than direct vendor disclosure suggests that the initial reporting mechanism may have been delayed or indirect, which is common in older vulnerabilities where vendor response times were less standardized. The Netref 3.0 system's failure to implement proper input validation mechanisms creates a persistent risk that can be exploited by attackers with minimal technical expertise. The vulnerability demonstrates a fundamental flaw in the application's security architecture where user input is treated as trusted without proper sanitization processes. This type of vulnerability is particularly dangerous because it can be leveraged to escalate privileges, extract sensitive information, or even gain shell access to the underlying database server. The lack of proper parameterized queries or input filtering mechanisms in the application's codebase directly contributes to the exploitable condition. The attack pattern aligns with standard sql injection techniques where malicious payloads are injected into parameters to manipulate the sql execution context. Network-based attacks can be executed through simple http requests containing crafted sql payloads in the cat parameter. The vulnerability's impact is further compounded by the fact that it affects a core application component that likely handles essential functionality. The absence of proper security controls in the application's design reflects poor security practices that were more prevalent in earlier software development cycles. Organizations running affected systems face significant risk of data breaches, regulatory compliance violations, and potential legal consequences. The vulnerability's exploitation can result in complete system compromise if the database server allows for command execution or if the attacker can escalate privileges through the compromised database access. The lack of direct vendor information about the vulnerability's origin makes it difficult to assess the full scope of potential variants or related issues within the Netref 3.0 ecosystem. This vulnerability serves as a classic example of why input validation and parameterized queries are fundamental security requirements in web application development. The exploitation of such vulnerabilities can result in cascading security failures if the compromised system has access to other network resources or sensitive data repositories. Security professionals should consider this vulnerability as part of broader sql injection attack patterns that require comprehensive application security testing. The vulnerability's age and third-party attribution suggest that it may have been discovered and documented by security researchers who were not directly affiliated with the software vendor. Mitigation efforts should focus on immediate patching or code modification to implement proper input validation and parameterized query usage. The vulnerability's presence in a content management system highlights the importance of securing all application components, not just those directly handling user authentication or sensitive operations. Organizations should conduct thorough security assessments to identify similar vulnerabilities within their legacy systems and ensure proper security controls are in place. The vulnerability demonstrates the critical importance of implementing defense-in-depth strategies that include proper input validation, output encoding, and regular security testing to prevent such exploitable conditions from persisting in production environments.