CVE-2006-6153 in Classified System
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in vSpin.net Classified System 2004 allow remote attackers to inject arbitrary web script or HTML via (1) catname parameter to cat.asp or the (2) minprice parameter to search.asp.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 12/01/2024
The vulnerability identified as CVE-2006-6153 represents a critical security flaw in the vSpin.net Classified System 2004, specifically manifesting as multiple cross-site scripting vulnerabilities that expose the application to remote code execution attacks. This vulnerability resides within the web application's input validation mechanisms, where user-supplied parameters are not properly sanitized before being processed and returned to users. The flaw affects two distinct endpoints within the classified system: the cat.asp page which processes the catname parameter, and the search.asp page which handles the minprice parameter. These parameters serve as entry points for malicious actors to inject arbitrary web scripts or HTML content directly into the application's response stream.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. The vulnerability operates by bypassing the application's security controls that should validate and sanitize user input before it is rendered in web pages. When an attacker submits malicious input through either the catname or minprice parameters, the application fails to properly escape or filter special characters that could be interpreted as HTML or JavaScript code. This allows the injected payload to execute within the context of other users' browsers who view the affected pages, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of victims. The vulnerability's classification as remote indicates that attackers do not require local access or authentication to exploit the flaw, making it particularly dangerous in publicly accessible web applications.
The operational impact of CVE-2006-6153 extends beyond simple data corruption or display issues, as it fundamentally compromises the integrity and confidentiality of user interactions within the classified system. When successful, these XSS attacks can enable attackers to steal session cookies, redirect users to malicious websites, modify page content, or perform actions as authenticated users without their knowledge. The vulnerability affects the core functionality of the classified system by potentially allowing attackers to manipulate search results, display fraudulent advertisements, or even inject malicious code that could compromise the entire application environment. The attack surface is particularly concerning given that classified systems typically handle sensitive user data including personal contact information, listing details, and potentially financial transactions. This vulnerability could facilitate broader attacks within the application's ecosystem, potentially leading to data breaches or unauthorized access to user accounts.
Mitigation strategies for CVE-2006-6153 must focus on implementing robust input validation and output encoding mechanisms throughout the application's codebase. The most effective approach involves applying proper HTML escaping and encoding to all user-supplied input before rendering it in web pages, which directly addresses the root cause of the vulnerability. Organizations should implement comprehensive parameter validation that rejects or sanitizes potentially dangerous characters and sequences that could be interpreted as HTML or JavaScript. The solution should include input sanitization at multiple layers, including server-side validation and output encoding to prevent malicious payloads from being executed in user browsers. Additionally, implementing Content Security Policy (CSP) headers can provide an additional layer of protection by restricting the sources from which scripts can be loaded and executed. Security patches should be applied immediately to address the vulnerability, and the application should be reviewed for similar input validation weaknesses that may exist elsewhere in the codebase, as this represents a systemic security issue that could affect other parameters or pages within the application.