CVE-2015-5670 in Enisys Gw
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Techno Project Japan Enisys Gw before 1.4.1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/27/2018
The CVE-2015-5670 vulnerability represents a critical cross-site scripting flaw discovered in Techno Project Japan Enisys Gw software prior to version 1.4.1. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security flaws identified in the OWASP Top Ten security risks. The vulnerability allows remote attackers to inject malicious web scripts or HTML content into the application, potentially compromising user sessions and data integrity. The unspecified vectors in the original description indicate that the attack could occur through multiple entry points within the web application's input handling mechanisms, making the vulnerability particularly concerning for security professionals as it suggests a broad attack surface.
Technical exploitation of this XSS vulnerability occurs when the Enisys Gw application fails to properly sanitize or validate user input before rendering it in web pages. Attackers can craft malicious payloads that, when executed, can steal session cookies, redirect users to malicious websites, or perform actions on behalf of authenticated users. The vulnerability's remote nature means that attackers do not require physical access to the system or local network privileges to exploit it. This characteristic aligns with the ATT&CK framework's technique T1059.007 for Command and Scripting Interpreter, where attackers leverage web-based scripting to execute malicious code in user browsers. The impact extends beyond simple script injection as it can enable more sophisticated attacks such as credential theft, data exfiltration, or even privilege escalation within the application's context.
The operational impact of CVE-2015-5670 poses significant risks to organizations utilizing Enisys Gw software, particularly those handling sensitive data or requiring user authentication. A successful exploitation could lead to unauthorized access to user accounts, data breaches, and potential system compromise. The vulnerability affects the application's integrity and confidentiality properties within the CIA triad, as it allows attackers to manipulate web content and potentially access protected resources. Organizations may experience reputational damage, regulatory compliance issues, and financial losses due to potential data exposure. The vulnerability's presence in software versions before 1.4.1 indicates that it was likely present in multiple deployments, increasing the attack surface and potential impact across various organizational environments.
Mitigation strategies for CVE-2015-5670 should prioritize immediate software updates to version 1.4.1 or later, as this release contains the necessary patches to address the XSS vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms throughout the application's codebase, ensuring that all user-supplied data is properly sanitized before processing or display. The implementation of Content Security Policy (CSP) headers can provide additional protection layers against XSS attacks by restricting the sources from which scripts can be loaded. Security teams should conduct regular vulnerability assessments and penetration testing to identify similar weaknesses in other applications and systems. Network segmentation and monitoring solutions can help detect and prevent exploitation attempts. The remediation approach should align with the ATT&CK framework's defense techniques, particularly those focused on input validation and output encoding to prevent malicious script execution. Additionally, implementing web application firewalls and security awareness training for developers can significantly reduce the likelihood of similar vulnerabilities in future deployments.