Local Privilege Escalation via Insecure Update Mechanism in iMonitor EAM
Vulnerability Description
iMonitor EAM 9.6394 installs a system service (eamusbsrv64.exe) that runs with NT AUTHORITY\SYSTEM privileges. This service includes an insecure update mechanism that automatically loads files placed in the C:\sysupdate\ directory during startup. Because any local user can create and write to this directory, an attacker can place malicious DLLs or executables in it. Upon service restart, the files are moved to the application’s installation path and executed with SYSTEM privileges, leading to privilege escalation.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Marius Renner, SEC Consult Vulnerability Lab
- Daniel Hirschberger, SEC Consult Vulnerability Lab
- Tobias Niemann, SEC Consult Vulnerability Lab
- Thorger Jansen, SEC Consult Vulnerability Lab
References
Affected Vendor
iMonitor Software Inc.
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