CVE-2006-6186 in enomphp
Summary
by MITRE
Multiple directory traversal vulnerabilities in enomphp 4.0 allow remote attackers to read arbitrary files via a .. (dot dot) in the dir parameter to (1) config.php, (2) ranklv_inside.php, (3) rankml_inside.php, and (4) admin/Restore/config.php.
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Analysis
by VulDB Data Team • 08/09/2018
The vulnerability identified as CVE-2006-6186 represents a critical directory traversal flaw affecting enomphp version 4.0, a web application framework that was widely used for hosting various website functionalities. This vulnerability falls under the category of improper input validation and allows remote attackers to exploit the application's file handling mechanisms to access arbitrary files on the server. The flaw specifically manifests in four distinct files within the application's directory structure, making it particularly dangerous as it provides multiple attack vectors for unauthorized file access. The vulnerability's presence in core administrative files such as admin/Restore/config.php indicates the potential for severe impact on system security and data integrity. This issue demonstrates a fundamental failure in the application's security architecture where user-supplied input is not properly sanitized or validated before being used in file operations.
The technical exploitation of this vulnerability occurs through manipulation of the dir parameter in four specific files: config.php, ranklv_inside.php, rankml_inside.php, and admin/Restore/config.php. Attackers can leverage directory traversal sequences using the .. (dot dot) notation to navigate outside the intended directory boundaries and access files that should remain protected. When the application processes these parameters without proper validation, it allows the attacker to specify absolute or relative paths that bypass normal access controls. The vulnerability directly relates to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. This weakness enables attackers to read sensitive files such as configuration files, database credentials, source code, and other confidential information that should not be accessible through web requests.
The operational impact of CVE-2006-6186 extends beyond simple file access, as it can lead to complete system compromise and data breaches. An attacker who successfully exploits this vulnerability can potentially obtain administrative credentials, database connection strings, and other sensitive configuration data stored in the affected files. The presence of this vulnerability in administrative components like admin/Restore/config.php particularly increases the risk of unauthorized system modifications and complete takeover of the affected web application. This type of vulnerability aligns with ATT&CK technique T1566, which describes the use of credential dumping and file access to gain unauthorized access to systems. The vulnerability's exploitation can result in unauthorized data access, system reconnaissance, and potentially serve as a stepping stone for more sophisticated attacks within the network infrastructure.
Mitigation strategies for CVE-2006-6186 require immediate implementation of input validation and sanitization measures. Organizations should ensure that all user-supplied input is properly validated and filtered before being processed in file operations. The recommended approach involves implementing strict path validation that prevents the use of directory traversal sequences and ensures that all file access operations occur within designated safe directories. This can be achieved through the use of allowlists that define acceptable file paths and reject any input that attempts to navigate outside these boundaries. Additionally, the application should be updated to a patched version that addresses this vulnerability, as the original enomphp 4.0 version is no longer supported and likely contains additional security flaws. System administrators should also implement proper access controls and file permissions to limit the damage that could occur even if exploitation were to succeed, while monitoring for unusual file access patterns that might indicate attempted exploitation of this vulnerability.