CVE-2019-25308 in Mikogo
Summary
by MITRE • 02/11/2026
Mikogo 5.2.2.150317 contains an unquoted service path vulnerability in the Mikogo-Service Windows service configuration. Attackers can exploit the unquoted path to inject and execute malicious code with LocalSystem privileges by placing executable files in specific path locations.
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Analysis
by VulDB Data Team • 02/27/2026
The vulnerability identified as CVE-2019-25308 resides within Mikogo 5.2.2.150317, a remote desktop and online meeting software solution. This particular weakness manifests as an unquoted service path configuration within the Mikogo-Service Windows service, representing a classic privilege escalation vector that has been documented in numerous security assessments and vulnerability analyses. The flaw stems from improper service path specification where the executable path contains spaces but lacks proper quotation marks, creating a directory traversal opportunity that adversaries can exploit to gain elevated system privileges. The service configuration fails to properly encapsulate the path string, allowing Windows to interpret the path components as separate directory levels rather than a single quoted path.
The technical exploitation of this vulnerability occurs through a well-documented privilege escalation technique that aligns with CWE-428, which describes the weakness of unquoted service paths in Windows environments. When Windows attempts to resolve the service path, it searches through directory levels in the order they appear, beginning with the root directory and proceeding through each component until it finds an executable file. This behavior creates a window of opportunity for attackers to place malicious executables in directories that Windows will traverse before reaching the legitimate service executable, effectively allowing code injection at the system level. The vulnerability specifically affects the Mikogo-Service, which runs with LocalSystem privileges, meaning any code executed through this vector will operate with the highest possible system permissions, enabling full system compromise.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass complete system compromise and persistent access within target environments. Attackers exploiting this weakness can execute arbitrary code with system-level privileges, potentially leading to data exfiltration, lateral movement, or establishment of backdoors within the compromised system. The vulnerability is particularly concerning in enterprise environments where Mikogo might be deployed across multiple systems, as it provides a consistent attack vector that requires minimal reconnaissance to identify and exploit. This type of vulnerability is classified under the MITRE ATT&CK framework as privilege escalation through service misconfiguration, specifically mapping to techniques involving service binary modification and service installation. The vulnerability's persistence is enhanced by the fact that the service runs with elevated privileges, making it an attractive target for attackers seeking long-term access to compromised systems.
Mitigation strategies for this vulnerability should focus on immediate service path correction and broader system hardening measures. The primary remediation involves properly quoting the service path to prevent directory traversal, which aligns with security best practices established in various industry standards including those from the Center for Internet Security and NIST guidelines for Windows service configuration. Organizations should also implement regular security assessments to identify similar unquoted path vulnerabilities across all installed services, as this is a common configuration weakness that affects numerous applications and services. Additional protective measures include implementing strict access controls, monitoring for unauthorized service modifications, and conducting regular vulnerability scans to identify unquoted service paths in the environment. The vulnerability demonstrates the importance of proper service configuration and highlights how seemingly minor configuration errors can create significant security risks that may be exploited by adversaries with minimal technical expertise.