CVE-2009-3903 in Netflow Analyzer
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in jspui/index.jsp in ManageEngine Netflow Analyzer 7.5 build 7500 allow remote attackers to inject arbitrary web script or HTML via the (1) view and (2) section parameters. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 04/27/2025
The vulnerability identified as CVE-2009-3903 represents a critical cross-site scripting flaw in ManageEngine Netflow Analyzer 7.5 build 7500 within the jspui/index.jsp component. This issue affects the web application's input validation mechanisms, specifically targeting the view and section parameters that are processed without adequate sanitization or encoding. The vulnerability exists in the application's user interface layer where user-supplied parameters are directly incorporated into dynamically generated web content without proper security controls.
The technical exploitation of this vulnerability occurs when remote attackers manipulate the view and section parameters in the URL to inject malicious JavaScript code or HTML content. The flaw stems from insufficient input validation and output encoding practices within the jspui/index.jsp file, which fails to properly sanitize user-provided data before rendering it in the web browser context. This allows attackers to execute arbitrary scripts in the context of authenticated users, potentially leading to session hijacking, credential theft, or further exploitation of the compromised system.
From an operational perspective, this vulnerability poses significant risks to organizations utilizing ManageEngine Netflow Analyzer, as it enables attackers to exploit the application's web interface to perform unauthorized actions. The impact extends beyond simple data theft, as successful exploitation could allow attackers to modify application behavior, access sensitive network monitoring data, or establish persistent access points within the network infrastructure. The vulnerability affects the application's integrity and confidentiality, potentially compromising the security of network flow data that the tool is designed to monitor and analyze.
The flaw aligns with CWE-79, which describes cross-site scripting vulnerabilities where untrusted data is incorporated into web pages without proper validation or encoding. This vulnerability also maps to several ATT&CK techniques including T1566 for initial access through web application attacks and T1071 for application layer protocol usage. Organizations should implement immediate mitigations including input validation, output encoding, and parameter sanitization within the affected application. Additionally, network segmentation, web application firewalls, and regular security updates should be deployed to prevent exploitation. The vulnerability underscores the importance of proper input validation in web applications and the necessity of following secure coding practices to prevent injection flaws that could compromise application security and user data integrity.