CVE-2010-3668 in TYPO3
Summary
by MITRE
TYPO3 before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4 and 4.4.x before 4.4.1 allows Header Injection in the secure download feature jumpurl.
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Analysis
by VulDB Data Team • 11/05/2019
The vulnerability identified as CVE-2010-3668 affects TYPO3 content management systems across multiple version ranges including versions before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4, and 4.4.x before 4.4.1. This issue specifically targets the secure download feature known as jumpurl which is designed to handle file downloads while maintaining security through URL redirection mechanisms. The vulnerability manifests as a header injection flaw that can be exploited by malicious actors to manipulate HTTP headers during the download process.
The technical flaw resides in the improper validation and sanitization of user input within the jumpurl functionality. When users attempt to access secure downloads, the system constructs HTTP headers based on parameters provided in the URL. The vulnerability occurs because the application fails to adequately filter or escape special characters in these parameters, allowing attackers to inject malicious header content. This injection can occur through crafted URLs that contain newline characters or other header manipulation sequences that are typically used to break out of the intended header context.
The operational impact of this vulnerability is significant as it enables attackers to perform various malicious activities including but not limited to open redirect attacks, cache poisoning, and session manipulation. An attacker could potentially redirect users to malicious websites, inject malicious content into web caches, or manipulate session cookies to hijack user sessions. The vulnerability particularly affects environments where TYPO3 is used for secure file distribution or where the jumpurl feature is enabled for managing access to protected resources. This makes it especially dangerous in corporate environments or applications where sensitive documents are distributed through the CMS.
The vulnerability aligns with CWE-1107, which specifically addresses improper neutralization of special elements used in HTTP headers, and can be mapped to ATT&CK technique T1190 for exploiting vulnerabilities in web applications. Organizations using affected TYPO3 versions should prioritize immediate patching to mitigate this risk. The recommended mitigation involves upgrading to the patched versions mentioned in the CVE description, specifically ensuring that installations are updated to 4.1.14, 4.2.13, 4.3.4, or 4.4.1 respectively. Additionally, administrators should implement proper input validation and sanitization measures for all user-supplied parameters, particularly those used in header construction. Network monitoring should be enhanced to detect unusual header injection patterns, and access controls should be reviewed to limit exposure of the vulnerable jumpurl feature where possible. The vulnerability demonstrates the critical importance of proper input validation in web applications and highlights how seemingly minor flaws in header handling can lead to substantial security breaches.