CVE-2018-10381 — CRITICAL (9.8)

Vulnerability Description

TunnelBear 3.2.0.6 for Windows suffers from a SYSTEM privilege escalation vulnerability through the "TunnelBearMaintenance" service. This service establishes a NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The "OpenVPNConnect" method accepts a server list argument that provides attacker control of the OpenVPN command line. An attacker can specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mcafee	Tunnelbear	3.2.0.6

Related Weaknesses (CWE)

CWE-732

References

https://github.com/VerSprite/research/blob/master/advisories/VS-2018-022.mdThird Party Advisory
https://github.com/VerSprite/research/blob/master/advisories/VS-2018-022.mdThird Party Advisory

FAQ

What is CVE-2018-10381?

CVE-2018-10381 is a vulnerability with a CVSS score of 9.8 (CRITICAL). TunnelBear 3.2.0.6 for Windows suffers from a SYSTEM privilege escalation vulnerability through the "TunnelBearMaintenance" service. This service establishes a NetNamedPipe endpoint that allows arbitr...

How severe is CVE-2018-10381?

CVE-2018-10381 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-10381?

Check the references section above for vendor advisories and patch information. Affected products include: Mcafee Tunnelbear.