CVE-2012-4018 in MyWebSearch
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Final Beta Laboratory MyWebSearch before 1.23 allows remote attackers to inject arbitrary web script or HTML via the keywords parameter.
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Analysis
by VulDB Data Team • 02/22/2019
The vulnerability identified as CVE-2012-4018 represents a classic cross-site scripting flaw within the MyWebSearch software developed by Final Beta Laboratory. This security weakness affects versions prior to 1.23 and demonstrates a critical failure in input validation and output sanitization mechanisms. The vulnerability specifically manifests when the application processes user-supplied input through the keywords parameter, which is commonly used in search functionality. Attackers can exploit this weakness by crafting malicious payloads that contain embedded script code, which then gets executed in the context of other users' browsers when they view search results or interact with the affected application interface.
The technical implementation of this XSS vulnerability stems from the application's inadequate filtering of user input before rendering it in web pages. When the keywords parameter is processed without proper sanitization, the system fails to escape or encode special characters that could be interpreted as HTML or script tags. This allows malicious actors to inject JavaScript code, HTML markup, or other malicious content that gets executed in the browser context of legitimate users. The vulnerability is classified as a reflected XSS attack since the malicious script is reflected off the web server and executed in the victim's browser. This type of vulnerability directly maps to CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') and aligns with ATT&CK technique T1059.007 - Command and Scripting Interpreter: JavaScript, which describes how adversaries can leverage JavaScript execution capabilities to compromise user sessions and perform further attacks.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform session hijacking, steal user credentials, redirect victims to malicious sites, or deface web pages. In the context of MyWebSearch, which is a search tool, successful exploitation could allow attackers to manipulate search results, inject malicious advertisements, or capture sensitive information from users who interact with the search interface. The vulnerability affects all users who access the application through browsers, making it particularly dangerous as it can be exploited through various attack vectors including phishing emails, compromised websites, or direct injection attacks. Organizations using affected versions of MyWebSearch face significant risk of user data compromise and potential reputational damage from successful exploitation attempts.
Mitigation strategies for CVE-2012-4018 should prioritize immediate patching of the affected software to version 1.23 or later, which contains the necessary input validation fixes. Additionally, organizations should implement comprehensive input sanitization measures including proper HTML encoding of all user-supplied data before rendering in web pages, implementation of Content Security Policy headers to limit script execution, and regular security testing of web applications. The fix should address the root cause by ensuring that all parameters, particularly those used in search functionality, undergo proper validation and sanitization processes. Security teams should also consider implementing web application firewalls to detect and block suspicious input patterns, and conduct regular security awareness training to help users identify potential phishing attempts that might exploit this vulnerability. The vulnerability serves as a reminder of the critical importance of proper input validation in web applications and demonstrates how seemingly simple functionality can create significant security risks when not properly secured.