CVE-2018-10201 in vSpace Pro
Summary
by MITRE
An issue was discovered in NcMonitorServer.exe in NC Monitor Server in NComputing vSpace Pro 10 and 11. It is possible to read arbitrary files outside the root directory of the web server. This vulnerability could be exploited remotely by a crafted URL without credentials, with .../ or ...\ or ..../ or ....\ as a directory-traversal pattern to TCP port 8667.
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Analysis
by VulDB Data Team • 11/16/2025
The vulnerability identified as CVE-2018-10201 represents a critical directory traversal flaw in the NcMonitorServer.exe component of NComputing vSpace Pro version 10 and 11. This issue affects the NC Monitor Server web interface which operates on TCP port 8667, creating a significant security risk for organizations utilizing this virtual desktop infrastructure solution. The vulnerability stems from insufficient input validation within the web server's file handling mechanisms, allowing attackers to bypass normal access controls and retrieve files from arbitrary locations on the system's file system.
The technical exploitation of this vulnerability relies on manipulating URL parameters to include directory traversal sequences such as .../ or ...\ or ..../ or ....\ patterns. These sequences enable attackers to navigate beyond the intended web root directory and access files that should remain protected. The flaw exists because the application fails to properly sanitize user-supplied input before processing file requests, allowing maliciously crafted URLs to manipulate the file system path resolution. This type of vulnerability is classified as CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, which is a fundamental security weakness in file system access controls. The vulnerability is particularly dangerous because it requires no authentication credentials, making it an unauthenticated remote code execution vector that can be exploited from any network location.
The operational impact of CVE-2018-10201 extends beyond simple information disclosure, as attackers can potentially access sensitive system files, configuration data, and user information stored on the affected server. This includes but is not limited to system configuration files, user credentials, application logs, and potentially even system binaries that could provide further attack vectors. The vulnerability affects the core monitoring functionality of the vSpace Pro platform, potentially compromising the integrity and confidentiality of virtual desktop environments. Organizations using this software may experience unauthorized access to critical infrastructure components, leading to potential data breaches, system compromise, and disruption of virtual desktop services. The attack surface is particularly concerning given that the vulnerability operates on a dedicated port and can be exploited remotely without authentication, making it an attractive target for automated scanning and exploitation tools.
Mitigation strategies for CVE-2018-10201 should include immediate patching of the affected NComputing vSpace Pro versions, as well as network-level controls to restrict access to TCP port 8667. Organizations should implement network segmentation to isolate the affected systems and limit exposure to external networks. The principle of least privilege should be enforced by restricting access to the monitoring server to only authorized personnel and systems. Additionally, input validation controls should be implemented at the application level to prevent directory traversal attempts, including proper sanitization of URL parameters and implementing strict path validation mechanisms. Security monitoring should be enhanced to detect unusual file access patterns and potential exploitation attempts. According to ATT&CK framework, this vulnerability maps to T1083 - File and Directory Discovery and T1105 - Remote File Copy, indicating the potential for lateral movement and data exfiltration. Organizations should also consider implementing web application firewalls to detect and block malicious directory traversal attempts, and conduct regular security assessments to identify similar vulnerabilities in other components of their virtual desktop infrastructure.