CVE-2010-4885 in XING
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the XING Button (xing) extension before 1.0.2 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/12/2019
The CVE-2010-4885 vulnerability represents a critical cross-site scripting flaw within the XING Button extension for TYPO3 content management system. This vulnerability specifically affects versions prior to 1.0.2 and exposes web applications to remote code execution through malicious script injection. The issue stems from insufficient input validation and output encoding mechanisms within the extension's handling of user-supplied data. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is classified as a fundamental web application security weakness that allows attackers to inject malicious scripts into web pages viewed by other users.
The technical implementation of this vulnerability occurs through unspecified vectors within the XING Button extension's codebase, which likely processes user input without proper sanitization before rendering it in web responses. Attackers can exploit this weakness by crafting malicious payloads that get executed in the context of other users' browsers when they view pages containing the vulnerable extension. The attack typically involves injecting script tags or other malicious HTML content that gets stored or reflected in the application's output, thereby bypassing standard security controls. This type of vulnerability is particularly dangerous because it can be leveraged to steal session cookies, perform unauthorized actions on behalf of users, or redirect them to malicious websites.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to compromise entire user sessions and potentially gain elevated privileges within the TYPO3 environment. When exploited, the vulnerability allows remote attackers to execute arbitrary web scripts or HTML code, which can lead to persistent XSS attacks that affect all users who visit affected pages. The attack surface is particularly concerning in enterprise environments where TYPO3 is used for content management, as it can be used to compromise sensitive data, manipulate content, or establish backdoors within the web application. The vulnerability's persistence across different user sessions makes it a significant threat to web application security.
Mitigation strategies for CVE-2010-4885 should focus on immediate patching of the XING Button extension to version 1.0.2 or later, which contains the necessary security fixes. Organizations should also implement comprehensive input validation and output encoding mechanisms to prevent similar vulnerabilities in other components of their TYPO3 installations. The remediation process should include thorough code review of all third-party extensions and implementation of strict content security policies that limit script execution capabilities. Security teams should also consider deploying web application firewalls and monitoring systems to detect and prevent exploitation attempts. This vulnerability demonstrates the importance of maintaining up-to-date web application components and following secure coding practices that align with ATT&CK framework's defensive techniques for preventing XSS attacks through proper input sanitization and output encoding.