CWE Code: 22
Vulnerability Type: privilege_escalation
CVSS Score: 6.6
CWE Name:  Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Summary: 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.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/NONE
Published Date: 2019-01-02
Last Modified Date: 2019-01-30