CVE-2016-8922 in WebRadar
Summary
by MITRE
Exphox WebRadar is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
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Analysis
by VulDB Data Team • 08/31/2020
The vulnerability identified as CVE-2016-8922 affects Exphox WebRadar, a web-based network scanning and monitoring tool that provides security assessments for network infrastructure. This particular vulnerability represents a classic cross-site scripting flaw that undermines the integrity of the application's user interface and potentially compromises user sessions. The vulnerability exists within the web application's input validation mechanisms, specifically in how the application processes and renders user-supplied data within the graphical user interface.
This cross-site scripting vulnerability manifests when the application fails to properly sanitize user input before incorporating it into dynamic web content. The flaw allows an attacker to inject malicious javascript code through various input vectors within the web interface, which then executes in the context of other users' browser sessions. The vulnerability is classified under CWE-79 as "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", which is one of the most prevalent and well-documented web application security flaws. The attack surface is particularly concerning because it enables attackers to manipulate the intended functionality of the application, potentially leading to session hijacking and credential theft.
The operational impact of this vulnerability extends beyond simple script execution, as it creates a persistent threat vector that can be exploited to compromise user sessions within the trusted environment of the WebRadar application. When users interact with the vulnerable application, any malicious script injected into the web interface can execute in their browser context, potentially capturing session cookies, login credentials, or other sensitive information. This threat is particularly severe because the application is designed for security monitoring and assessment, meaning that users with elevated privileges may be at risk of having their administrative credentials compromised. The vulnerability enables adversaries to perform actions within the application as if they were authenticated users, potentially allowing unauthorized access to network scanning results, configuration settings, or other sensitive data.
Mitigation strategies for CVE-2016-8922 should focus on implementing robust input validation and output encoding mechanisms throughout the application's codebase. The primary defense involves sanitizing all user-supplied input before rendering it within the web interface, ensuring that any potentially malicious script content is neutralized or escaped. Organizations should implement Content Security Policy headers to limit script execution and prevent unauthorized code injection. Additionally, the application should employ proper output encoding for all dynamic content, particularly when displaying user-provided data within HTML contexts. This vulnerability aligns with several tactics described in the MITRE ATT&CK framework under the T1059.001 technique for "Command and Scripting Interpreter: JavaScript", as it enables attackers to execute malicious javascript code within the victim's browser environment. Regular security assessments and code reviews should be conducted to identify similar input validation weaknesses, and the application should be updated to a patched version that addresses the specific XSS vulnerability in the Exphox WebRadar software.