CVE-2007-4192 in DVD Rental System DRS
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in IDE Group DVD Rental System (DRS) 5.1 before 20070801 allow remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: it is not clear whether IDE Group updates all DRS installations in its role as an application service provider. If so, then this issue should not be included in CVE.
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Analysis
by VulDB Data Team • 10/26/2017
The CVE-2007-4192 vulnerability affects the IDE Group DVD Rental System version 5.1 and earlier, representing a critical cross-site scripting flaw that enables remote attackers to execute malicious web scripts or HTML code within the context of affected web applications. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically manifesting as an injection flaw where untrusted data is improperly handled and reflected back to users without adequate sanitization or encoding measures. The vulnerability exists in the application's input validation mechanisms, allowing attackers to inject malicious payloads through unspecified vectors that likely involve user-controllable parameters or form fields within the web interface.
The technical implementation of this vulnerability demonstrates a classic XSS attack pattern where user-supplied data flows directly into web responses without proper security controls. Attackers can exploit this weakness by crafting malicious scripts that, when executed in a victim's browser, can perform unauthorized actions such as stealing session cookies, redirecting users to malicious sites, or defacing web pages. The unspecified vectors suggest that the vulnerability may exist across multiple input points within the application, potentially including search functions, comment fields, or user profile parameters. This broad attack surface increases the exploitability and potential impact of the vulnerability.
The operational impact of CVE-2007-4192 extends beyond simple data theft or defacement, as it creates a persistent security risk for all users of the affected DVD rental system. When attackers successfully inject malicious scripts, they can leverage the compromised user sessions to perform actions on behalf of legitimate users, potentially gaining access to sensitive customer data, rental records, or administrative functions. The vulnerability is particularly concerning in an application service provider context where multiple customers share the same infrastructure, as a successful exploitation could potentially affect all users of that service. The fact that the vulnerability exists in a system designed for managing rental operations suggests that attackers could gain access to personal information, payment details, or other sensitive data that users trust the system to protect.
Mitigation strategies for CVE-2007-4192 should focus on implementing comprehensive input validation and output encoding controls throughout the application. The recommended approach involves applying proper HTML encoding to all user-supplied data before rendering it in web pages, implementing Content Security Policy headers to restrict script execution, and employing secure coding practices that prevent direct data injection into web responses. Organizations should also consider implementing web application firewalls to detect and block suspicious script injection attempts, while ensuring that all input fields undergo strict validation to prevent malicious payloads from being processed. The vulnerability's classification as a CWE-79 issue emphasizes the importance of defensive programming techniques that address the root cause of injection vulnerabilities rather than merely patching symptoms. Additionally, regular security assessments and code reviews should be conducted to identify similar weaknesses in other application components, as the presence of one XSS vulnerability often indicates potential for additional related security flaws. The specific timing of this vulnerability's discovery and the note regarding IDE Group's update practices suggest that organizations relying on this system should verify their current software versions and ensure that appropriate patches have been applied to prevent exploitation of this and similar vulnerabilities.