CVE-2023-37645 in EyouCMS
Summary
by MITRE • 07/21/2023
eyoucms v1.6.3 was discovered to contain an information disclosure vulnerability via the component /custom_model_path/recruit.filelist.txt.
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Analysis
by VulDB Data Team • 07/21/2023
The vulnerability identified as CVE-2023-37645 affects eyoucms version 1.6.3 and represents a critical information disclosure flaw that exposes sensitive system data through an improperly secured file access mechanism. This vulnerability resides within the custom model path component of the content management system, specifically targeting the recruit.filelist.txt file which serves as a directory listing mechanism. The flaw allows unauthorized users to bypass normal access controls and retrieve directory structures, file names, and potentially sensitive configuration data that should remain protected within the application's internal file system.
The technical implementation of this vulnerability stems from inadequate input validation and access control mechanisms within the eyoucms framework. When the system processes requests to the custom_model_path endpoint, it fails to properly authenticate or authorize access to the recruit.filelist.txt file, which contains directory listing information that could reveal the underlying file structure of the web application. This misconfiguration creates an information exposure condition that aligns with CWE-200, which specifically addresses information exposure through improper access control mechanisms. The vulnerability essentially provides an attacker with a comprehensive view of the application's internal directory structure, potentially exposing sensitive files, configuration details, or other system artifacts that could aid in subsequent exploitation attempts.
From an operational impact perspective, this information disclosure vulnerability significantly weakens the security posture of affected systems by providing attackers with valuable reconnaissance data. The exposed directory listings may reveal the presence of backup files, configuration files containing database credentials, or other sensitive resources that could be leveraged for privilege escalation or lateral movement within the network. Security practitioners should note that this vulnerability directly maps to ATT&CK technique T1213.002, which involves the collection of files and directories, as it enables adversaries to gather system information without proper authorization. The exposure of file system structure can facilitate more sophisticated attacks such as path traversal, local file inclusion, or other exploitation techniques that require knowledge of the underlying system architecture.
The mitigation strategy for CVE-2023-37645 requires immediate implementation of access control restrictions on the custom_model_path component and the recruit.filelist.txt file. Organizations should ensure that all file access mechanisms within the eyoucms framework properly validate user authentication and authorization before serving directory listings or file contents. The recommended approach includes implementing proper input sanitization, restricting access to sensitive directories, and ensuring that directory listing functionality is either disabled or properly secured with appropriate authentication controls. Additionally, system administrators should conduct comprehensive audits of all file access points within the application to identify and remediate similar vulnerabilities that may exist in other components of the eyoucms framework. Regular security assessments and vulnerability scanning should be performed to ensure that no additional information disclosure vulnerabilities remain within the system, as the presence of one such flaw often indicates potential for additional security weaknesses in the application's architecture.