CVE-2012-1086 in aeurltool
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the UrlTool (aeurltool) extension 0.1.0 for TYPO3 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/14/2019
The CVE-2012-1086 vulnerability represents a critical cross-site scripting flaw within the UrlTool extension version 0.1.0 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 UrlTool extension, designed to handle URL-related functionalities within TYPO3, contains a security gap that enables remote attackers to inject malicious web scripts or HTML code into the application's response. The vulnerability's impact is significant as it affects the core web application security model of TYPO3, potentially allowing attackers to execute unauthorized code in the context of victim users' browsers.
The technical nature of this XSS vulnerability stems from insufficient input validation and output encoding within the UrlTool extension's processing mechanisms. Attackers can exploit unspecified vectors to inject malicious payloads that will be executed when other users view the affected pages or interact with the extension's functionality. The vulnerability's unspecified nature suggests that multiple attack vectors may exist within the extension's codebase, making it particularly challenging to fully assess the scope of potential exploitation. This weakness allows for the execution of arbitrary web scripts, which could include malicious JavaScript code, HTML content, or other harmful payloads that can compromise user sessions, steal sensitive information, or redirect users to malicious websites.
The operational impact of CVE-2012-1086 extends beyond simple script injection, as it can enable sophisticated attack chains that leverage the compromised TYPO3 environment. When users with administrative privileges access pages containing the malicious payloads, attackers can potentially escalate privileges or gain full control over the CMS. The vulnerability creates a persistent threat vector that can be exploited across multiple user sessions, making it particularly dangerous for organizations relying on TYPO3 for their web presence. Attackers can craft payloads that exploit the XSS weakness to steal cookies, session tokens, or other sensitive data from authenticated users, effectively bypassing traditional security controls.
Organizations affected by this vulnerability should implement immediate mitigation strategies including input validation, output encoding, and proper sanitization of user-supplied data within the UrlTool extension. The recommended approach involves updating to patched versions of the UrlTool extension or implementing web application firewalls that can detect and block malicious script injection attempts. Security teams should also conduct thorough code reviews of the TYPO3 installation to identify other potential XSS vulnerabilities within the broader application ecosystem. According to ATT&CK framework, this vulnerability maps to T1059.007 for script injection and T1566 for credential access, highlighting the multi-faceted threat landscape that such vulnerabilities create. The attack surface expands when considering that TYPO3 installations often contain sensitive administrative interfaces, making this vulnerability particularly attractive to threat actors seeking persistent access to web applications. Organizations must also consider implementing Content Security Policy headers and regular security assessments to prevent similar vulnerabilities from emerging in other extensions or custom code components within their TYPO3 environments.