CVE-2025-34078
NSClient++ 0.5.2.35 Local Privilege Escalation via ExternalScripts and Web Interface
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NSClient++ 0.5.2.35 Local Privilege Escalation via ExternalScripts and Web Interface
A local privilege escalation vulnerability exists in NSClient++ 0.5.2.35 when both the web interface and ExternalScripts features are enabled. The configuration file (nsclient.ini) stores the administrative password in plaintext and is readable by local users. By extracting this password, an attacker can authenticate to the NSClient++ web interface (typically accessible on port 8443) and abuse the ExternalScripts plugin to inject and execute arbitrary commands as SYSTEM by registering a custom script, saving the configuration, and triggering it via the API. This behavior is documented but insecure, as the plaintext credential exposure undermines access isolation between local users and administrative functions.
Reserved 2025-04-15 | Published 2025-07-02 | Updated 2025-07-02 | Assigner VulnCheckCWE-312 Cleartext Storage of Sensitive Information
CWE-269 Improper Privilege Management
kindredsec
BZYO
Yann Castel
raw.githubusercontent.com/...ploits/windows/local/nscp_pe.rb
www.exploit-db.com/exploits/48360
www.exploit-db.com/exploits/46802
vulncheck.com/...es/nsclient-localtoremote-system-compromise
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