CVE-2013-5100 in Static Methods
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Static Methods since 2007 (div2007) extension before 0.10.2 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, related to the t3lib_div::quoteJSvalue function.
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Analysis
by VulDB Data Team • 02/19/2018
The CVE-2013-5100 vulnerability represents a critical cross-site scripting flaw within the div2007 extension for TYPO3 content management systems. This vulnerability specifically affects versions prior to 0.10.2 and stems from improper handling of JavaScript quoting within the t3lib_div::quoteJSvalue function. The flaw enables remote attackers to execute malicious scripts in the context of affected web applications, potentially compromising user sessions and data integrity. The vulnerability has persisted since the extension's initial release in 2007, indicating a long-standing security oversight that was not addressed until the 0.10.2 version update. This particular extension is widely used for various static methods and utility functions within TYPO3 installations, making the vulnerability particularly dangerous as it affects numerous web applications that rely on this functionality.
The technical exploitation of this vulnerability occurs through the t3lib_div::quoteJSvalue function which is responsible for properly escaping JavaScript content when embedded within web pages. When this function fails to adequately sanitize user input or dynamic content, it creates opportunities for attackers to inject malicious scripts that execute in the browsers of unsuspecting users. The unspecified vectors mentioned in the description suggest that the vulnerability can be triggered through multiple input points within the extension's functionality, including form submissions, URL parameters, or content management interfaces. This broad attack surface increases the likelihood of successful exploitation and makes the vulnerability particularly challenging to defend against. The flaw directly relates to CWE-79, which defines Cross-Site Scripting vulnerabilities as the injection of malicious scripts into web applications viewed by other users, and aligns with ATT&CK technique T1059.007 for JavaScript injection attacks.
The operational impact of CVE-2013-5100 extends beyond simple script injection, as it can lead to session hijacking, credential theft, and data manipulation within affected TYPO3 installations. Attackers could potentially redirect users to malicious sites, steal cookies, or execute commands on behalf of authenticated users. The long lifespan of this vulnerability, existing for over five years without proper mitigation, indicates that many organizations may still be running vulnerable versions of the div2007 extension. This creates persistent exposure for web applications that rely on TYPO3 and the affected extension, particularly in environments where patch management processes are inadequate or delayed. The vulnerability's presence in core TYPO3 utility functions means that even minor usage of the extension could expose entire web applications to these risks.
Organizations should immediately update to div2007 version 0.10.2 or later to remediate this vulnerability, as no effective workarounds exist for the underlying t3lib_div::quoteJSvalue function. System administrators should conduct comprehensive audits of all TYPO3 installations to identify affected versions and ensure proper patch deployment across all environments. Security monitoring should be enhanced to detect potential exploitation attempts through unusual JavaScript injection patterns or malformed input in application logs. The vulnerability demonstrates the importance of regular security assessments and timely patch management, particularly for widely-used open source components. Additionally, implementing content security policies and input validation controls can provide additional defense-in-depth measures, though these are not substitutes for the necessary version updates. This vulnerability serves as a reminder of the critical need for maintaining current security patches in content management systems and web applications that utilize third-party extensions.