CVE-2006-2423 in Confixx
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in ftplogin/index.php in Confixx 3.1.2 allows remote attackers to inject arbitrary web script or HTML via the login parameter.
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Analysis
by VulDB Data Team • 09/02/2025
The CVE-2006-2423 vulnerability represents a classic cross-site scripting flaw in the Confixx 3.1.2 web application, specifically within the ftplogin/index.php component. This vulnerability arises from inadequate input validation and output sanitization mechanisms that fail to properly escape or filter user-supplied data before rendering it in web responses. The affected parameter, login, serves as the primary attack vector where malicious actors can inject malicious scripts or HTML content that gets executed in the context of other users' browsers. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws. The vulnerability exists in the application's authentication interface, making it particularly dangerous as it targets the login functionality that users trust and interact with regularly.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious URL containing script code within the login parameter value. When a victim navigates to this crafted URL or when the vulnerable application processes the malicious input without proper sanitization, the injected script executes in the victim's browser context. This execution can occur through various means including the use of javascript: protocols, html event handlers, or other script injection techniques. The vulnerability demonstrates a failure in the application's secure coding practices, specifically in the area of input validation and output encoding. According to ATT&CK framework, this represents a T1059.007 technique involving scripting languages and T1531 leveraging web application vulnerabilities. The vulnerability is particularly concerning because it targets the authentication mechanism, potentially allowing attackers to steal session cookies, perform unauthorized actions, or redirect users to malicious sites.
The operational impact of CVE-2006-2423 extends beyond simple script execution, as it can enable attackers to perform session hijacking attacks, manipulate user interfaces, or redirect authenticated users to phishing sites. When users authenticate through the vulnerable interface, their browsers execute the injected scripts, potentially compromising their sessions and credentials. The attack can be amplified through social engineering techniques where users are tricked into clicking malicious links that exploit this vulnerability. The vulnerability's impact is further compounded by the fact that it affects the core authentication process, making it a high-value target for attackers seeking persistent access to systems. Organizations using Confixx 3.1.2 are particularly vulnerable as this version likely lacks proper input sanitization and output encoding mechanisms that would prevent such attacks.
Mitigation strategies for CVE-2006-2423 involve implementing proper input validation and output encoding techniques to prevent malicious script injection. The primary defense mechanism requires developers to escape or encode all user-supplied data before rendering it in web responses, particularly within authentication interfaces. This includes implementing proper HTML entity encoding, JavaScript escaping, and using Content Security Policy headers to limit script execution. Organizations should also implement input validation that rejects or sanitizes potentially dangerous characters and patterns. The vulnerability highlights the importance of following secure coding practices and adhering to OWASP Top 10 security guidelines, specifically focusing on preventing XSS vulnerabilities. Patch management becomes critical as this vulnerability represents an outdated security flaw that should be addressed through immediate software updates or implementation of proper input sanitization measures. Additionally, monitoring and logging of authentication attempts can help detect potential exploitation attempts, while user education about suspicious links and social engineering attacks provides an additional layer of defense.