CVE-2007-3355 in NetClassifieds
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in NetClassifieds Premium Edition allow remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 09/04/2018
The vulnerability identified as CVE-2007-3355 represents a critical security flaw in the NetClassifieds Premium Edition software, specifically targeting cross-site scripting vulnerabilities that pose significant risks to web application security. This issue affects the core functionality of the classifieds platform by creating pathways for malicious actors to inject arbitrary web scripts or HTML content into the application's response, potentially compromising user sessions and data integrity. The vulnerability stems from inadequate input validation and output encoding mechanisms within the software's handling of user-supplied data, which allows attackers to exploit unspecified vectors to execute malicious code in the context of the victim's browser. These XSS vulnerabilities fall under the Common Weakness Enumeration category CWE-79, which specifically addresses improper neutralization of input during web page generation, making them particularly dangerous in web applications where user interaction is essential.
The technical exploitation of this vulnerability occurs when user-provided input is not properly sanitized before being rendered in web pages, creating opportunities for attackers to inject malicious scripts that can execute in the browser context of unsuspecting users. The unspecified vectors suggest that multiple entry points within the application may be susceptible to this type of attack, potentially including form fields, URL parameters, or other user-controllable inputs that are processed by the classifieds platform. Attackers can leverage these vulnerabilities to perform session hijacking, steal sensitive information, redirect users to malicious websites, or even modify the content displayed to users, fundamentally compromising the integrity and security of the application. The impact extends beyond simple data theft as these vulnerabilities can be used to establish persistent malicious presence within the application environment, making them particularly attractive to threat actors seeking long-term access to the system.
From an operational perspective, the exploitation of CVE-2007-3355 could result in severe consequences for organizations utilizing NetClassifieds Premium Edition, including unauthorized access to user accounts, data breaches, and potential compromise of the entire application infrastructure. The vulnerability's remote nature means that attackers do not require physical access to the system to exploit these flaws, making them particularly dangerous in internet-facing applications. Organizations may experience reputational damage, regulatory compliance violations, and financial losses due to the potential for user data exposure and service disruption. The attack surface is further expanded when considering that classifieds platforms often contain sensitive user information including personal details, contact information, and potentially financial data, making successful exploitation particularly damaging.
Mitigation strategies for CVE-2007-3355 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application codebase, following the principle of least privilege and secure coding practices. Organizations should implement proper HTML escaping and sanitization of all user inputs before rendering them in web pages, utilizing established security libraries and frameworks that provide built-in protection against XSS attacks. The implementation of Content Security Policy headers can provide additional defense-in-depth measures to prevent execution of unauthorized scripts even if vulnerabilities are present. Regular security audits and penetration testing should be conducted to identify and remediate similar vulnerabilities, while keeping the application software updated with the latest security patches from the vendor. According to the ATT&CK framework, this vulnerability maps to techniques involving web application attacks and session management compromises, emphasizing the need for comprehensive security controls that address both the immediate vulnerability and broader application security posture. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious activity related to XSS attack patterns and provide additional layers of protection against exploitation attempts.