CVE-2010-3714 in TYPO3
Summary
by MITRE
The jumpUrl (aka access tracking) implementation in tslib/class.tslib_fe.php in TYPO3 4.2.x before 4.2.15, 4.3.x before 4.3.7, and 4.4.x before 4.4.4 does not properly compare certain hash values during access-control decisions, which allows remote attackers to read arbitrary files via unspecified vectors.
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Analysis
by VulDB Data Team • 06/28/2024
The vulnerability identified as CVE-2010-3714 represents a critical access control flaw within the TYPO3 content management system that affects multiple version branches including 4.2.x through 4.2.14, 4.3.x through 4.3.6, and 4.4.x through 4.4.3. This issue resides in the tslib/class.tslib_fe.php file where the jumpUrl functionality operates as an access tracking mechanism. The flaw manifests in the improper comparison of hash values during access-control decisions, creating a pathway for malicious actors to bypass authentication mechanisms and gain unauthorized access to sensitive resources. The vulnerability stems from a cryptographic weakness in how hash comparisons are performed, specifically when validating access control decisions for URL redirections.
The technical implementation of this vulnerability exploits a weakness in the hash validation process within the access tracking system. When TYPO3 processes jumpUrl requests, it should validate hash values to ensure that access control decisions are properly enforced. However, the flawed comparison logic allows attackers to manipulate hash values in such a way that they can pass the validation checks without proper authorization. This weakness enables remote attackers to craft specially formatted requests that appear legitimate to the system's access control mechanisms. The unspecified vectors mentioned in the description suggest that the attack could potentially be executed through various means including web interface manipulation, direct API calls, or even through crafted URL parameters that leverage the flawed hash comparison.
The operational impact of CVE-2010-3714 extends beyond simple unauthorized access as it provides attackers with the capability to read arbitrary files from the server filesystem. This represents a severe privilege escalation vulnerability that could allow attackers to access sensitive configuration files, database credentials, user information, and other critical system resources. The vulnerability essentially creates a backdoor that bypasses the normal access control mechanisms of TYPO3, enabling attackers to navigate the file system and potentially escalate their privileges within the application environment. This type of vulnerability aligns with CWE-287 which addresses improper authentication issues and can be categorized under ATT&CK technique T1078 for valid accounts and T1566 for phishing with a focus on credential access and privilege escalation.
Organizations running affected TYPO3 versions face significant security risks including data breaches, system compromise, and potential regulatory violations. The vulnerability's remote exploitability means that attackers do not require physical access or prior authentication to leverage the flaw, making it particularly dangerous for publicly accessible web applications. The impact is compounded by the fact that TYPO3 is widely used for enterprise and government applications where the exposure of sensitive data could have severe financial and reputational consequences. The hash comparison flaw represents a fundamental security weakness that undermines the integrity of the application's access control framework, potentially allowing attackers to gain unauthorized access to critical system resources.
The recommended mitigation strategy involves immediate application of the vendor-provided patches for all affected TYPO3 versions, specifically upgrading to the patched releases 4.2.15, 4.3.7, and 4.4.4 respectively. Organizations should also implement network-level protections including firewall rules to restrict access to the affected application components and monitor for suspicious access patterns in web server logs. Security teams should conduct comprehensive vulnerability assessments to identify any potential exploitation attempts and implement proper input validation controls to prevent similar hash comparison vulnerabilities in other components. Additionally, organizations should consider implementing web application firewalls and intrusion detection systems to provide additional layers of protection against exploitation attempts targeting this class of vulnerability.