CVE-2006-1160 in Efs Web Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Easy File Sharing (EFS) Web Server 3.2 allows remote attackers to inject arbitrary web script or HTML via the Description field in creating a folder or uploading a file.
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Analysis
by VulDB Data Team • 06/16/2019
The CVE-2006-1160 vulnerability represents a critical cross-site scripting flaw in Easy File Sharing Web Server version 3.2 that exposes users to significant web application security risks. This vulnerability specifically targets the Description field functionality within the file sharing platform, allowing remote attackers to inject malicious web scripts or HTML code during folder creation or file upload operations. The flaw demonstrates a classic input validation failure that enables persistent XSS attacks, where malicious code can be executed in the context of other users' browsers who access the compromised web application. The vulnerability stems from inadequate sanitization of user-supplied input, particularly in fields designed to accept descriptive text for folder metadata or file attributes.
The technical implementation of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. Attackers can exploit this weakness by crafting malicious input containing script tags or other HTML elements within the Description field, which are then stored and subsequently rendered when other users browse the file sharing interface. The attack vector is particularly dangerous because it operates through legitimate user interaction patterns, making detection more challenging. When victims access folders or files containing malicious descriptions, their browsers execute the injected scripts, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability's persistence aspect means that once injected, the malicious code remains active until the affected content is removed or modified.
The operational impact of CVE-2006-1160 extends beyond simple script execution to encompass broader security implications for organizations using Easy File Sharing Web Server. Users who access the file sharing platform may unknowingly execute malicious code that can compromise their browser sessions, steal authentication tokens, or redirect them to phishing sites. The vulnerability affects the integrity of the web application by allowing unauthorized code execution in the context of legitimate users, potentially leading to complete browser compromise. Organizations relying on this platform face risks of data exfiltration, unauthorized access to shared files, and potential lateral movement within their network infrastructure through compromised user sessions. The persistent nature of the vulnerability means that even after initial exploitation, the malicious code continues to affect users until the compromised content is removed from the system.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms within the web application. The most effective approach involves sanitizing all user-supplied input through strict validation and encoding processes before storing or rendering any content in the Description field. Organizations should implement proper HTML escaping techniques to prevent script execution in web contexts, ensuring that any potentially malicious code is rendered harmless. Additionally, the application should enforce strict content type validation and implement proper access controls to limit the scope of potential exploitation. Security updates or patches should be applied immediately to address the root cause of the vulnerability, and administrators should consider implementing web application firewalls to detect and block suspicious input patterns. The remediation efforts should also include comprehensive user education about the risks of interacting with untrusted content and regular security assessments to identify similar vulnerabilities in the application's codebase.