CVE-2008-2275 in Sr Feuser Register Extension
Summary
by MITRE
Unspecified vulnerability in sr_feuser_register 1.4.0, 1.6.0, 2.2.1 to 2.2.7, 2.3.0 to 2.3.6, 2.4.0, and 2.5.0 to 2.5.9 extension for TYPO3 allows remote attackers to execute arbitrary code and delete arbitrary files via unspecified attack vectors.
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Analysis
by VulDB Data Team • 11/14/2017
The vulnerability identified as CVE-2008-2275 affects the sr_feuser_register extension for TYPO3 content management systems, specifically targeting versions ranging from 1.4.0 through 1.6.0 and multiple version ranges including 2.2.1 to 2.2.7, 2.3.0 to 2.3.6, 2.4.0, and 2.5.0 to 2.5.9. This represents a critical security flaw that exists within the extension's file handling and input validation mechanisms, creating potential attack vectors that could be exploited by remote threat actors. The unspecified nature of the attack vectors suggests that the vulnerability may manifest through multiple entry points within the extension's codebase, making it particularly challenging to defend against and remediate. The vulnerability's classification as a remote code execution flaw indicates that attackers can potentially gain full system control without requiring local access or authentication credentials, presenting a severe risk to web server integrity and data security. This type of vulnerability directly impacts the principle of least privilege and can compromise the entire TYPO3 installation if exploited successfully.
The technical implementation of this vulnerability stems from inadequate input sanitization and improper file handling within the sr_feuser_register extension, which likely processes user-supplied data without sufficient validation or escaping mechanisms. Attackers can exploit this weakness through unspecified vectors that may involve parameter manipulation, file upload bypasses, or direct injection techniques that allow them to execute malicious code on the target server. The vulnerability's potential to enable arbitrary file deletion further amplifies its severity, as it could allow attackers to remove critical system files, corrupt databases, or destroy application functionality. This dual capability of code execution and file deletion creates a comprehensive attack surface that can be leveraged for both system compromise and data destruction. The vulnerability aligns with common weakness patterns categorized under CWE-20, which addresses "Improper Input Validation" and CWE-77, which covers "Command Injection," suggesting that the underlying flaw involves insufficient validation of user-provided data before it is processed by the application.
The operational impact of CVE-2008-2275 extends beyond simple exploitation to encompass potential system-wide compromise and data breaches that could affect thousands of websites relying on vulnerable TYPO3 installations. Organizations running affected versions of the sr_feuser_register extension face immediate risk of unauthorized access, data exfiltration, and service disruption. The vulnerability's remote nature means that attackers can exploit it from anywhere on the internet without requiring physical access to the server infrastructure, making it particularly dangerous for publicly accessible web applications. Security teams must consider that this vulnerability could be actively exploited in the wild, as evidenced by the age of the CVE and the prevalence of TYPO3 installations in enterprise environments. The potential for attackers to execute arbitrary code and delete files creates a pathway for persistent threats that could establish backdoors, escalate privileges, or cause complete system failure, leading to significant business disruption and regulatory compliance issues.
Mitigation strategies for this vulnerability should prioritize immediate patching of affected TYPO3 installations to the latest supported versions of the sr_feuser_register extension, which would address the underlying input validation and file handling flaws. Organizations should implement network-level controls such as firewalls and intrusion detection systems to monitor for suspicious traffic patterns that might indicate exploitation attempts. Additionally, security hardening measures including disabling unnecessary extension functionality, implementing strict input validation at multiple layers, and conducting regular security audits of installed extensions should be implemented. The vulnerability's characteristics align with ATT&CK tactics including T1059 for command and script injection, and T1486 for data encryption for ransomware, indicating that exploitation could lead to further attack chain progression. Regular security assessments of TYPO3 installations and comprehensive monitoring of system logs for unauthorized file modifications or code execution attempts are essential defensive measures that can help detect and prevent exploitation of this vulnerability. Organizations should also consider implementing application whitelisting controls and restricting file upload capabilities to minimize the attack surface where such vulnerabilities might be leveraged.