CVE-2012-3529 in TYPO3
Summary
by MITRE
The configuration module in the backend in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to obtain the encryption key via unspecified vectors.
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Analysis
by VulDB Data Team • 12/13/2021
The vulnerability identified as CVE-2012-3529 represents a critical security flaw within the TYPO3 content management system that affects multiple version branches including 4.5.x through 4.5.18, 4.6.x through 4.6.11, and 4.7.x through 4.7.3. This issue resides within the backend configuration module and specifically targets the encryption key handling mechanism that is fundamental to TYPO3's security architecture. The vulnerability allows authenticated backend users to extract encryption keys through unspecified vectors, which fundamentally compromises the system's cryptographic security measures and could enable further exploitation.
The technical flaw stems from inadequate access controls and validation mechanisms within the backend configuration module that governs how encryption keys are managed and accessed. When authenticated users interact with the configuration interface, they can exploit unspecified vectors to bypass normal access restrictions and retrieve the encryption key that protects various system components including user credentials, session data, and other sensitive information. This weakness operates at the configuration management layer where proper authorization checks fail to prevent legitimate users from accessing cryptographic material that should remain protected. The vulnerability essentially creates an information disclosure pathway that allows attackers with backend access to escalate their privileges and gain deeper system insights.
The operational impact of this vulnerability is substantial as it enables authenticated attackers to obtain encryption keys that can be used to decrypt sensitive data stored within the TYPO3 system. This includes user passwords, session tokens, and other confidential information that relies on the encryption key for protection. The compromise of encryption keys can lead to full system takeover scenarios where attackers can impersonate users, modify content, access restricted areas, and potentially escalate privileges to administrative levels. According to CWE standards, this vulnerability maps to CWE-200, Information Disclosure, and represents a direct violation of the principle of least privilege. The attack vector operates through the backend interface where legitimate users can exploit configuration module weaknesses to gain unauthorized access to critical cryptographic material.
Organizations running affected TYPO3 versions face significant security risks when this vulnerability is exploited, as it provides attackers with the means to decrypt sensitive communications and potentially gain persistent access to their systems. The attack pattern aligns with ATT&CK technique T1552.001, "Unsecured Credentials," where attackers exploit system configurations to obtain sensitive information. Mitigation strategies should include immediate patching to the affected versions, implementing additional access controls for backend configuration modules, and conducting comprehensive security audits of cryptographic key management processes. System administrators should also consider implementing network segmentation, monitoring for unusual access patterns to configuration modules, and establishing more robust credential management practices. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in the system architecture. The vulnerability demonstrates the critical importance of maintaining up-to-date software versions and implementing proper access controls for administrative functions that handle sensitive cryptographic materials.