CVE-2011-4166 in Managed Printing Administration
Summary
by MITRE
Directory traversal vulnerability in the MPAUploader.Uploader.1.UploadFiles method in HP Managed Printing Administration before 2.6.4 allows remote attackers to create arbitrary files via crafted form data.
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Analysis
by VulDB Data Team • 05/31/2025
The CVE-2011-4166 vulnerability represents a critical directory traversal flaw within HP Managed Printing Administration software, specifically affecting versions prior to 2.6.4. This vulnerability resides in the MPAUploader.Uploader.1.UploadFiles method, which processes file upload operations through web forms. The flaw enables remote attackers to manipulate the file upload process by crafting malicious form data that can bypass normal file handling restrictions and create arbitrary files on the target system. Such directory traversal vulnerabilities are particularly dangerous because they allow attackers to write files to locations outside the intended upload directory, potentially leading to system compromise through the creation of malicious executables or configuration files.
The technical exploitation of this vulnerability involves manipulating the form data submitted during file uploads to include directory traversal sequences such as "../" or similar path manipulation techniques. When the MPAUploader.Uploader.1.UploadFiles method processes these crafted requests, it fails to properly validate or sanitize the file paths, allowing the attacker to specify arbitrary destination paths for file creation. This flaw directly aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability demonstrates a classic lack of input validation and sanitization in file handling operations, where the application fails to properly restrict file system access based on user-supplied input.
Operationally, this vulnerability presents significant risks to organizations using HP Managed Printing Administration software, as it can be exploited remotely without authentication requirements. Attackers can leverage this weakness to upload malicious files such as web shells, backdoors, or other harmful executables to the target system. The impact extends beyond simple file creation, as successful exploitation can lead to full system compromise, data exfiltration, and persistent access within the network environment. The vulnerability particularly affects enterprise environments where managed printing administration systems are used to control and monitor printing infrastructure, making it a prime target for attackers seeking to establish footholds within corporate networks. Organizations may face regulatory compliance issues and potential data breaches if this vulnerability is exploited, as it provides a direct path for unauthorized file system manipulation.
Mitigation strategies for CVE-2011-4166 should prioritize immediate software updates to HP Managed Printing Administration version 2.6.4 or later, which contains the necessary patches to address the directory traversal vulnerability. Network administrators should also implement additional security controls such as input validation on web forms, restriction of file upload capabilities to specific directories with proper access controls, and monitoring for unusual file creation patterns. The implementation of web application firewalls and security scanning tools can help detect and prevent exploitation attempts. From an ATT&CK framework perspective, this vulnerability maps to techniques involving file and directory permissions modification and execution through web shells, representing a significant threat to enterprise security infrastructure and requiring comprehensive defensive measures including regular vulnerability assessments and security hardening of web applications.