CVE-2011-5067 in Support Incident Tracker
Summary
by MITRE
move_uploaded_file.php in Support Incident Tracker (aka SiT!) 3.65 allows remote authenticated users to obtain sensitive information via the file name, which reveals the installation path in an error message.
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Analysis
by VulDB Data Team • 08/09/2024
The vulnerability identified as CVE-2011-5067 affects Support Incident Tracker version 3.65, specifically within the move_uploaded_file.php component. This flaw represents a sensitive data exposure issue that occurs when the application processes file uploads and generates error messages containing the absolute installation path of the system. The vulnerability is classified under CWE-200, which addresses the exposure of sensitive information to an unauthorized actor, making it a critical concern for system security and privacy. The issue manifests when authenticated users interact with the file upload functionality, creating an attack vector that could be exploited by malicious actors with legitimate access credentials.
The technical implementation of this vulnerability stems from improper error handling within the file upload processing logic. When the move_uploaded_file.php script encounters issues during file transfer operations, it includes the full system path in the generated error messages rather than sanitizing this information. This behavior violates fundamental security principles of information hiding and demonstrates a lack of proper input validation and error message sanitization. The flaw operates at the application layer and requires only authenticated access to exploit, making it particularly concerning as it can be leveraged by insiders or compromised legitimate users. The vulnerability is categorized under ATT&CK technique T1213.002, which involves data from information repositories, specifically targeting the exposure of system information through improper error handling.
The operational impact of this vulnerability extends beyond simple information disclosure, as the revealed installation paths can provide attackers with crucial system architecture information. This knowledge enables more sophisticated attack vectors including directory traversal attempts, privilege escalation within the application, and potential exploitation of other system vulnerabilities. The exposed paths may reveal server configurations, database connection details, and other sensitive system information that could be leveraged for further compromise. Attackers can use this information to craft more targeted attacks against the application's underlying infrastructure and potentially move laterally within the network environment. The vulnerability significantly weakens the overall security posture of the SiT! application and could facilitate more severe attacks if combined with other weaknesses in the system architecture.
Mitigation strategies for CVE-2011-5067 should focus on implementing proper error handling and input sanitization mechanisms within the application code. The recommended approach involves modifying the move_uploaded_file.php script to sanitize all error messages and ensure that system paths are never exposed to end users or logged in a way that could be accessed by unauthorized parties. Organizations should implement comprehensive logging controls that prevent sensitive information exposure while maintaining operational visibility. Security patches should be applied immediately to upgrade to versions that address this vulnerability, as the flaw exists in the application's core file handling logic. Additionally, implementing web application firewalls and input validation controls can provide additional layers of protection against exploitation attempts. The remediation process should include thorough code reviews to identify similar error handling patterns that may expose sensitive information, ensuring that all error messages are properly sanitized before being displayed to users or written to log files.