CVE-2011-5206 in Rapidleech
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in notes.php in Rapidleech before 2.3 rev42 SVN r399 allows remote attackers to inject arbitrary web script or HTML via the notes parameter.
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Analysis
by VulDB Data Team • 02/22/2019
The CVE-2011-5206 vulnerability represents a classic cross-site scripting flaw in the Rapidleech file downloading application that affected versions prior to 2.3 rev42 SVN r399. This vulnerability resides in the notes.php script and demonstrates a critical weakness in input validation and output sanitization practices within web applications. The flaw specifically enables remote attackers to inject malicious web scripts or HTML content through the notes parameter, creating a persistent vector for exploitation that can compromise user sessions and data integrity.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input within the notes parameter. When users interact with the Rapidleech application and provide content through the notes field, the application fails to properly validate or escape this input before rendering it in web responses. This allows attackers to craft malicious payloads that execute within the context of other users' browsers, leveraging the trust relationship between the web application and its users. The vulnerability aligns with CWE-79 which specifically addresses improper neutralization of input during web page generation, making it a direct implementation of this well-known weakness in web security practices.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform various malicious activities including session hijacking, credential theft, and data exfiltration. When exploited, the XSS vulnerability allows attackers to execute arbitrary JavaScript code within users' browsers, potentially leading to full compromise of user accounts and sensitive information access. The attack vector is particularly dangerous because it requires no privileged access or authentication from the attacker, making it highly accessible for exploitation. This vulnerability falls under the ATT&CK technique T1566.001 for Phishing and T1059.007 for Command and Scripting Interpreter, as it enables attackers to deliver malicious payloads through web-based interfaces.
Mitigation strategies for CVE-2011-5206 require immediate implementation of proper input validation and output encoding mechanisms. Organizations should upgrade to Rapidleech version 2.3 rev42 SVN r399 or later, which includes the necessary patches to address the vulnerability. Additionally, implementing Content Security Policy headers, proper HTML escaping of dynamic content, and input validation routines can prevent similar issues from occurring in other applications. The vulnerability highlights the critical importance of maintaining up-to-date software versions and implementing robust security practices throughout the application development lifecycle to prevent such persistent threats from compromising user security and data integrity.