CVE-2022-23397 in Gate EZ-NET Portal
Summary
by MITRE • 03/04/2022
The Cedar Gate EZ-NET portal 6.5.5 6.8.0 Internet portal has a call to display messages to users which does not properly sanitize data sent in through a URL parameter. This leads to a Reflected Cross-Site Scripting vulnerability.
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Analysis
by VulDB Data Team • 05/01/2025
The Cedar Gate EZ-NET portal version 6.5.5 through 6.8.0 contains a critical security flaw that manifests as a reflected cross-site scripting vulnerability. This vulnerability stems from inadequate input validation within the portal's message display functionality, which fails to properly sanitize data received through URL parameters. The flaw exists in the web application's user interface components that handle message rendering, creating an attack vector that allows malicious actors to inject arbitrary script code into web pages viewed by other users. This specific vulnerability falls under the CWE-79 category of Cross-Site Scripting, representing one of the most prevalent and dangerous web application security flaws. The reflected nature of this vulnerability means that the malicious script code is reflected off the web server back to the victim's browser, making it particularly effective for delivering attacks through phishing emails or compromised web links.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the ability to hijack user sessions, steal sensitive information, and potentially escalate privileges within the portal environment. When users click on malicious links containing crafted URL parameters, the reflected scripts execute in their browsers and can perform actions such as stealing session cookies, redirecting users to malicious sites, or even modifying the content of the portal interface. This vulnerability directly aligns with ATT&CK technique T1566.001 which involves phishing with malicious links, and T1531 which targets the execution of malicious code through web interfaces. The attack surface is particularly concerning because the vulnerability affects the core portal functionality that handles user communications, making it a prime target for exploitation in targeted attacks against organizations using this specific software version.
Mitigation strategies for this vulnerability should begin with immediate input validation and output encoding implementations that sanitize all URL parameters before they are processed and displayed to users. Organizations should implement proper content security policies that restrict script execution within the portal environment and deploy web application firewalls that can detect and block malicious payloads. The recommended remediation includes updating to the latest available version of the EZ-NET portal software where the vulnerability has been patched, as well as implementing comprehensive input validation mechanisms that follow OWASP secure coding practices. Additionally, security teams should conduct thorough penetration testing and vulnerability assessments to identify similar flaws within the application's codebase, particularly focusing on areas where user-supplied data is processed and displayed. Regular security training for developers on secure coding practices and the implementation of automated security scanning tools during the software development lifecycle can help prevent similar vulnerabilities from being introduced in future releases. The vulnerability demonstrates the critical importance of proper data sanitization in web applications and highlights the need for continuous security monitoring and proactive patch management across all organizational systems.