CVE-2014-0812 in Joyful Note
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in KENT-WEB Joyful Note 2.8 and earlier, when Internet Explorer 7 or earlier is used, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/28/2018
The CVE-2014-0812 vulnerability represents a cross-site scripting flaw affecting KENT-WEB Joyful Note version 2.8 and earlier implementations. This vulnerability specifically targets users operating Internet Explorer 7 or earlier versions, creating a targeted attack surface that exploits the browser's weaker security mechanisms. The vulnerability falls under the broader category of CWE-79 Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that allows malicious input to be executed as web script.
The technical flaw manifests through unspecified vectors that enable attackers to inject arbitrary web script or HTML content into the application's response. This injection occurs when the application fails to properly sanitize or encode user input before rendering it within web pages. The vulnerability is particularly dangerous in older Internet Explorer versions due to their limited built-in XSS protection mechanisms and less robust input validation compared to modern browsers. Attackers can leverage this weakness to execute malicious scripts in the context of the victim's browser session, potentially leading to session hijacking, credential theft, or data manipulation.
The operational impact of this vulnerability extends beyond simple script injection, as it creates opportunities for more sophisticated attacks within the targeted environment. When users access compromised pages through Internet Explorer 7 or earlier, attackers can execute persistent scripts that may capture keystrokes, steal cookies, or redirect users to malicious sites. The vulnerability's exploitation is particularly concerning in enterprise environments where legacy browser support may be required, as it can compromise the security posture of entire organizations. This weakness can facilitate credential theft, session manipulation, and unauthorized data access through the browser's trusted context.
Mitigation strategies should focus on both immediate remediation and long-term security improvements. The primary solution involves upgrading to KENT-WEB Joyful Note versions that address this vulnerability through proper input sanitization and output encoding mechanisms. Organizations should implement comprehensive input validation that follows OWASP secure coding practices, including the use of context-appropriate encoding for HTML, JavaScript, and URL contexts. Browser security enhancements should include mandatory browser updates and the implementation of Content Security Policy headers to limit script execution. Additionally, organizations should consider deploying web application firewalls that can detect and block XSS attack patterns, while also implementing proper security awareness training to help users recognize potential attack vectors. The vulnerability demonstrates the critical importance of maintaining up-to-date software and the risks associated with supporting legacy browser versions in modern web applications.