⚠️ NSSM is not inherently vulnerable; the risk lies in improperly secured services installed by NSSM. Always review service permission assignments.
sc config nssm_managed_service binPath= "C:\temp\reverse_shell.exe"
NSSM privilege escalation rarely stems from a flaw in the NSSM binary itself. Instead, it relies on two primary deployment flaws: 1. Insecure File and Folder Permissions (Weak ACLs)
NSSM allows users to install a service that does not have native Windows service support. Its key feature is that it runs as SYSTEM (the highest privilege level on Windows) by default when installed as a service. nssm224 privilege escalation updated
Compare the configuration differences between . Let me know how you'd like to proceed! AI responses may include mistakes. Learn more CVE-2016-20033 Detail - NVD
Do you need to automate the detection of these vulnerabilities?
The most common variant of this exploit involves the misconfiguration of folder permissions where nssm.exe or the application it wraps resides. ⚠️ NSSM is not inherently vulnerable; the risk
reg query HKLM\System\CurrentControlSet\Services /s /f "nssm.exe" Use code with caution. Step 2: Checking Permissions
Recent write-ups and tools like WinPEAS have updated their checks to specifically flag NSSM-managed services for the following:
The NSSM224 privilege escalation technique highlights a fundamental truth in Windows security: administrative tools are only as secure as the permissions surrounding them. NSSM itself is not inherently malware, but deploying it carelessly creates massive structural vulnerabilities. By auditing your filesystem permissions, sealing registry access, and maintaining robust endpoint monitoring, you can neutralize this attack vector completely. Instead, it relies on two primary deployment flaws: 1
If the command path in HKLM\SYSTEM\CurrentControlSet\Services\ is not quoted, Windows may execute a malicious binary before the legitimate one.
First, identify if NSSM is running on the target system. You can query running services using PowerShell or the native Windows command line to hunt for keywords. powershell