CVE-2010-0328 in Cs2 Unitconv
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Unit Converter (cs2_unitconv) extension 1.0.4 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 12/19/2017
The CVE-2010-0328 vulnerability represents a critical cross-site scripting flaw within the Unit Converter extension version 1.0.4 for the TYPO3 content management system. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security weaknesses. The vulnerability specifically affects the cs2_unitconv extension, which is designed to provide unit conversion functionality within TYPO3 websites. The flaw allows remote attackers to inject malicious web scripts or HTML content into the application's response, potentially compromising user sessions and data integrity.
The technical nature of this vulnerability stems from inadequate input validation and output sanitization within the extension's code implementation. When the Unit Converter extension processes user input or parameters, it fails to properly sanitize or escape the data before rendering it in web pages. This creates an opening for attackers to inject malicious scripts that execute in the context of other users' browsers. The unspecified vectors mentioned in the description suggest that the vulnerability could be exploited through multiple entry points within the extension's functionality, making it particularly dangerous as attackers can choose the most effective injection method. The vulnerability is classified as remote, meaning that attackers can exploit it without requiring physical access to the system or user interaction beyond visiting a malicious page.
The operational impact of this vulnerability is significant for organizations using TYPO3 with the affected extension. When exploited, the XSS attack could allow attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect users to malicious websites, or even deface the website content. The attack could potentially compromise sensitive user data and undermine the trust in the website's integrity. Given that TYPO3 is widely used for enterprise and government websites, the potential damage extends beyond simple data theft to include reputation damage and regulatory compliance violations. The vulnerability could also serve as a stepping stone for more sophisticated attacks, such as credential theft or privilege escalation within the application.
Organizations should immediately implement multiple layers of mitigation strategies to address this vulnerability. The primary recommendation is to upgrade to a patched version of the cs2_unitconv extension or remove the extension entirely from affected TYPO3 installations. System administrators should also implement proper input validation and output encoding mechanisms throughout their web applications, following the principle of least privilege and defensive programming practices. Additionally, implementing Content Security Policy headers can provide an additional barrier against XSS attacks by restricting the sources from which scripts can be loaded. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other extensions or custom code. This vulnerability aligns with ATT&CK technique T1566 which covers Social Engineering tactics, as the exploitation often relies on users being tricked into visiting malicious pages containing the injected scripts. Organizations should also consider implementing web application firewalls and monitoring for suspicious user agent patterns or unusual request parameters that might indicate exploitation attempts.