Vulnerability in Mcafee Tunnelbear
CVE-2018-10381
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.
EPSS: 0.037 (88.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Mcafee Tunnelbear — versions 3.2.0.6
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-10381?
- CVE-2018-10381 is a critical-severity vulnerability in Mcafee Tunnelbear, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.8/10. Published 2018-04-26.
- How severe is CVE-2018-10381?
- Critical severity. CVSS v3 base score is 9.8 out of 10.