CVE-2007-6268 in Absolute News Manager.NET
Summary
by MITRE
Directory traversal vulnerability in pages/default.aspx in Absolute News Manager.NET 5.1 allows remote attackers to read arbitrary files via a .. (dot dot) in the template parameter.
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Analysis
by VulDB Data Team • 06/14/2024
The CVE-2007-6268 vulnerability represents a critical directory traversal flaw in the Absolute News Manager.NET 5.1 web application that exposes sensitive system files to remote attackers. This vulnerability specifically affects the pages/default.aspx component where user input is improperly validated, allowing malicious actors to manipulate the template parameter through directory traversal sequences. The flaw enables unauthorized access to arbitrary files on the server by exploiting insufficient input sanitization mechanisms that fail to properly validate or sanitize user-supplied data before processing.
The technical implementation of this vulnerability stems from the application's failure to properly filter or validate the template parameter input, which is directly used to construct file paths without adequate security controls. When attackers submit .. (dot dot) sequences in the template parameter, the application processes these inputs without proper validation, allowing the traversal to escape the intended directory boundaries and access files outside the web root. This represents a classic path traversal vulnerability that falls under the CWE-22 category, specifically categorized as "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')". The vulnerability operates at the application layer where user input is directly incorporated into file system operations without proper sanitization or access control measures.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the ability to access sensitive system files including configuration files, database credentials, application source code, and potentially system-level files that could lead to further compromise. Attackers can leverage this vulnerability to obtain administrative access credentials, database connection strings, and other sensitive information that could facilitate additional attacks. The vulnerability is particularly concerning because it requires no authentication to exploit and can be executed through simple HTTP requests, making it highly accessible to threat actors. According to the ATT&CK framework, this vulnerability maps to the T1083 technique for discovering files and directories, and could lead to T1566 for initial access through web application attacks.
Mitigation strategies for CVE-2007-6268 should focus on implementing proper input validation and sanitization controls at the application level, including the implementation of whitelist-based validation for template parameters and the removal of directory traversal sequences from user input. Organizations should deploy proper access controls and file system permissions to limit what files can be accessed through the application interface. The recommended approach includes implementing a secure coding practice that validates all user input against a strict whitelist of acceptable values, implementing proper path normalization techniques, and ensuring that the application operates with the principle of least privilege. Additionally, web application firewalls and intrusion detection systems should be configured to monitor for suspicious directory traversal patterns, and regular security assessments should be conducted to identify similar vulnerabilities in other application components. The vulnerability also highlights the importance of keeping web applications updated with the latest security patches and implementing proper security testing procedures during development lifecycle phases to prevent similar issues from being introduced.