CVE-2023-40338 in Folders Plugin
Summary
by MITRE • 08/16/2023
Jenkins Folders Plugin 6.846.v23698686f0f6 and earlier displays an error message that includes an absolute path of a log file when attempting to access the Scan Organization Folder Log if no logs are available, exposing information about the Jenkins controller file system.
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Analysis
by VulDB Data Team • 08/16/2023
The vulnerability identified as CVE-2023-40338 affects the Jenkins Folders Plugin version 6.846.v23698686f0f6 and earlier, presenting a significant information disclosure risk that exposes sensitive filesystem details of the Jenkins controller. This flaw occurs specifically when users attempt to access the Scan Organization Folder Log functionality and no log files are present in the system. The plugin's error handling mechanism inadvertently reveals absolute file paths through error messages, creating an information disclosure vulnerability that can be exploited by attackers to gain insights into the underlying system architecture and file organization.
This vulnerability falls under the category of information disclosure as classified by CWE-200, where sensitive information is exposed to unauthorized users through improper error handling mechanisms. The flaw represents a direct violation of the principle of least privilege and information hiding, as the system reveals internal filesystem structure through error messages that should remain confidential. The exposed absolute paths provide attackers with detailed knowledge of the Jenkins controller's file system layout, including directory structures and potential file locations that could aid in further exploitation attempts.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates a foundation for more sophisticated attacks. Attackers can leverage the exposed file paths to understand the Jenkins installation structure, potentially identifying other vulnerable components or misconfigurations within the system. The vulnerability specifically impacts Jenkins controllers running the affected Folders Plugin version, making it particularly relevant for organizations that utilize organizational folder structures and continuous integration pipelines that rely on scanning functionalities. This exposure could enable attackers to craft more targeted attacks against the Jenkins infrastructure by understanding the system's internal file organization.
The security implications of this vulnerability align with several ATT&CK techniques including T1083 (File and Directory Discovery) and T1592 (Get Details of Network Service) as attackers can use the disclosed information to map the target system's filesystem and understand service configurations. Organizations should consider implementing proper input validation and error handling mechanisms to prevent such information leakage, ensuring that error messages do not contain sensitive system details. The recommended mitigation involves upgrading to a patched version of the Jenkins Folders Plugin where the error handling has been corrected to prevent absolute path exposure. Additionally, administrators should review their Jenkins configurations to ensure that error messages are sanitized and do not reveal internal system information, implementing proper logging practices that maintain security while providing necessary diagnostic information for administrators.