CVE-2017-15937 in Pandora FMS
Summary
by MITRE
Artica Pandora FMS version 7.0 leaks a full installation pathname via GET data when intercepting the main page's graph requisition. This also implies that general OS information is leaked (e.g., a /var/www pathname typically means Linux or UNIX).
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Analysis
by VulDB Data Team • 12/01/2019
The vulnerability identified as CVE-2017-15937 affects Artica Pandora FMS version 7.0 and represents a critical information disclosure flaw that exposes sensitive system details through improper error handling mechanisms. This vulnerability manifests when the web application processes graph requests through GET parameters, inadvertently revealing the complete installation path of the software on the server filesystem. The flaw operates at the application layer and demonstrates poor input validation and error handling practices that violate fundamental security principles.
The technical exploitation of this vulnerability occurs during normal operational procedures when users interact with the main page's graph functionality. When the application processes these requests, it fails to sanitize or properly handle the input parameters, resulting in the exposure of the full filesystem path where Pandora FMS is installed. This information leakage is particularly concerning because it provides attackers with precise knowledge of the operating system environment, as evidenced by the typical Linux/UNIX path structure such as /var/www which indicates a Unix-based system. The vulnerability directly maps to CWE-200, which categorizes information exposure issues, and represents a classic example of path traversal information disclosure.
The operational impact of this vulnerability extends beyond simple path revelation, as it provides adversaries with crucial reconnaissance data that can significantly aid in subsequent attack phases. The leaked installation path exposes the underlying operating system architecture and filesystem layout, enabling attackers to craft more targeted exploitation strategies. This information disclosure can be leveraged to bypass certain security controls, identify potential attack vectors, and understand the system's deployment environment. The vulnerability aligns with ATT&CK technique T1083 (File and Directory Discovery) as it provides attackers with detailed knowledge of the system's filesystem structure.
Organizations utilizing Artica Pandora FMS version 7.0 face substantial risk from this vulnerability, as it creates an information advantage for potential attackers. The exposure of the installation path can lead to more sophisticated attacks, including privilege escalation attempts and targeted exploitation of other system weaknesses. Security teams should implement immediate mitigations including input validation, proper error handling, and sanitization of all user-supplied data. The vulnerability also highlights the importance of regular security assessments and patch management, as it represents a preventable flaw that could have been addressed through proper code review and security testing practices. Organizations should also consider implementing web application firewalls to monitor and filter suspicious GET parameter requests that might exploit similar information disclosure vulnerabilities.