CVEs-PoC/2018/CVE-2018-15490.md

CVE-2018-15490

Description

An issue was discovered in ExpressVPN on Windows. The Xvpnd.exe process (which runs as a service with SYSTEM privileges) listens on TCP port 2015, which is used as an RPC interface for communication with the client side of the ExpressVPN application. A JSON-RPC protocol over HTTP is used for communication. The JSON-RPC XVPN.GetPreference and XVPN.SetPreference methods are vulnerable to path traversal, and allow reading and writing files on the file system on behalf of the service.

POC

Reference

• https://medium.com/@Wflki/https-medium-com-wflki-cve-2018-15490-expressvpn-local-privilege-escalation-d22c86fecc47
• https://medium.com/@Wflki/https-medium-com-wflki-cve-2018-15490-expressvpn-local-privilege-escalation-d22c86fecc47

Github

• https://github.com/ARPSyndicate/cvemon