CVE-2007-6674 in RapidShare
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Default.asp in RapidShare Database allows remote attackers to inject arbitrary web script or HTML via the Arayalim parameter.
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Analysis
by VulDB Data Team • 11/05/2017
The vulnerability identified as CVE-2007-6674 represents a classic cross-site scripting flaw in the RapidShare Database application's Default.asp component. This security weakness specifically affects the handling of user input through the Arayalim parameter, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The vulnerability resides in the application's failure to properly sanitize or encode user-supplied data before incorporating it into dynamically generated web pages, thereby enabling persistent or reflected XSS attacks that can compromise user sessions and data integrity.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input containing script tags or other HTML elements and submits them through the Arayalim parameter in the Default.asp page. Upon processing, the application incorporates this unvalidated input directly into the web response without adequate sanitization measures, allowing the injected code to execute in the victim's browser context. This type of flaw falls under CWE-79 which specifically addresses Cross-Site Scripting vulnerabilities in software applications, where improper input validation creates opportunities for attackers to inject malicious content. The vulnerability demonstrates a fundamental failure in the application's input validation and output encoding mechanisms, representing a critical weakness in the security posture of the RapidShare Database system.
The operational impact of this XSS vulnerability extends beyond simple script injection, potentially enabling attackers to perform session hijacking, steal sensitive user information, manipulate application data, or redirect users to malicious websites. Attackers could leverage this vulnerability to access user accounts, modify database entries, or execute unauthorized operations within the application's context. The reflected nature of the attack means that victims must be tricked into clicking malicious links containing the exploit payload, making this a significant threat in social engineering campaigns. This vulnerability also aligns with ATT&CK technique T1566 which covers spearphishing attacks that often utilize XSS vulnerabilities to deliver malicious payloads to unsuspecting users. The potential for widespread impact increases when considering that RapidShare Database likely handles user credentials and sensitive file information, making successful exploitation particularly dangerous for both individual users and the organization maintaining the system.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding practices throughout the application. The primary defense involves sanitizing all user input through proper encoding techniques such as HTML entity encoding before incorporating any data into web responses. Additionally, implementing a Content Security Policy (CSP) header can provide an additional layer of protection by restricting the sources from which scripts can be loaded and executed. Regular security code reviews and automated vulnerability scanning should be conducted to identify similar input validation weaknesses throughout the application. The implementation of a web application firewall (WAF) with XSS detection capabilities can provide real-time protection against known attack patterns. Furthermore, comprehensive security training for developers should emphasize secure coding practices and the importance of proper input validation to prevent similar vulnerabilities from being introduced in future releases. The fix should involve modifying the Default.asp script to validate and sanitize the Arayalim parameter input before processing, ensuring that any potentially malicious content is neutralized or rejected entirely.