CVE-2018-15490 — HIGH (7.1)

Vulnerability 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.

CVSS Score

7.1

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Expressvpn	Expressvpn	-
Microsoft	Windows	-

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2018-15490?

CVE-2018-15490 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 w...

How severe is CVE-2018-15490?

CVE-2018-15490 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-15490?

Check the references section above for vendor advisories and patch information. Affected products include: Expressvpn Expressvpn, Microsoft Windows.