Penetration testers often bundle NSSM 2.24 for two reasons:
This feature describes the most common way NSSM 2.24 is exploited: leveraging misconfigured file permissions in bundled software. The Scenario : Many applications (like Apache CouchDB Wowza Streaming Engine
nssm install MyService "\"C:\Program Files\MyApp\app.exe\"" nssm-2.24 exploit
try: # Create the malicious configuration file with open(config_file, "w") as f: f.write(f"[inet]\n") f.write(f" type= inet\n") f.write(f" exec= malicious_executable\n")
It was likely referring to:
Once the malicious request is processed, the NSSM service executes the injected code with elevated privileges, allowing the attacker to gain unauthorized access to sensitive areas of the system. The exploit can be used to:
: CouchDB 2.0.0 had weak file permissions that allowed non-privileged users to replace the nssm.exe binary itself with a malicious one, which would then run as an administrator upon service restart. Penetration testers often bundle NSSM 2
NSSM is often flagged by antivirus software as "potentially unwanted software" because threat actors use its legitimate ability to restart processes for maintaining persistence Weak File Permissions (LPE): In some third-party software installers (e.g., Apache CouchDB 2.0.0 Wowza Streaming Engine 4.5.0 ), the directory containing
The NSSM 2.24 vulnerability, also known as CVE-2021-3317, is a privilege escalation vulnerability. This vulnerability arises from a flawed design in the NSSM service, which allows a low-privileged user to exploit the service and gain elevated privileges. NSSM is often flagged by antivirus software as
The NSSM-2.24 exploit refers to a specific vulnerability in the Non-Sucking Service Manager (NSSM) version 2.24. NSSM is a service manager for Windows that allows users to easily install and manage services on their systems. While NSSM is a popular tool among system administrators, the 2.24 version has a significant vulnerability that can be exploited by attackers.
