CVE-2026-92193 in Foglight for Databases
Summary
by MITRE • 11/04/2026
Quest Foglight for Databases FileServlet External Control of File Path Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Quest Foglight for Databases. Authentication is required to exploit this vulnerability.
The specific flaw exists within the FileServlet class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. Was ZDI-CAN-29216.
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Analysis
by VulDB Data Team • 11/04/2026
The identified security flaw resides within the FileServlet component of Quest Foglight for Databases, representing a classic instance of improper input validation that leads to unauthorized file access. This vulnerability is categorized under CWE-22: Improper Limitation of a Pathname to a Restricted Directory, commonly known as path traversal or directory traversal. The core technical deficiency lies in the application's failure to adequately sanitize and validate user-supplied path parameters before they are utilized in underlying file system operations. When an authenticated user provides input containing relative path sequences such as dot-dot-slash characters, the server processes these without sufficient restriction, allowing the request to escape the intended directory scope. This lack of rigorous boundary checking enables the attacker to construct malicious requests that reference files and directories outside the web root or application-specific sandboxing boundaries.
From an operational perspective, this vulnerability facilitates significant information disclosure for any authenticated user interacting with the Foglight management interface. Because the FileServlet executes within the context of the SYSTEM account on the host machine, the consequences of exploitation are severe. An attacker can read arbitrary files from the server's file system that would otherwise be inaccessible due to standard operating system permissions. This includes sensitive configuration files, database connection strings containing credentials, internal application logs, and potentially other proprietary data stored within the Foglight installation directory or adjacent locations accessible by the SYSTEM user. The requirement for authentication means that an attacker must first compromise valid user credentials through phishing, credential stuffing, or other initial access vectors before this vulnerability can be leveraged effectively.
The exploitation of this flaw aligns with several tactics and techniques defined in the MITRE ATT&CK framework. Specifically, it relates to T1083: File and Directory Discovery, where adversaries search for files and directories on a compromised system to gather intelligence. Furthermore, because the vulnerability allows reading arbitrary files, it can serve as an initial step toward credential harvesting if sensitive configuration files containing plaintext passwords or API keys are accessible. The ability to read these files in the context of SYSTEM privileges significantly escalates the risk profile, potentially leading to full system compromise if combined with other vulnerabilities or misconfigurations that allow for code execution based on discovered secrets.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. Quest has released patches addressing this specific vulnerability within newer versions of Foglight for Databases; therefore, the primary recommendation is to apply the latest security updates provided by the vendor immediately. In environments where patching is not instantly feasible, network-level controls such as web application firewalls can be configured to detect and block requests containing path traversal sequences like dot-dot-slash in URL parameters targeting the FileServlet endpoint. Additionally, implementing strict input validation on all server-side components that handle file paths is critical. Developers should enforce allow-listing of permitted characters for filenames and ensure that resolved file paths are canonicalized and verified against a predefined base directory before any file system interaction occurs. Regular security audits and code reviews focusing on file handling routines can help prevent similar vulnerabilities from being introduced in future updates or custom extensions to the platform.