CVE-2018-10381
TunnelBear 3.2.0.6 for Windows suffers from a SYSTEM privilege escalation vulnerability through the "TunnelBearMaintenance" service.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.85% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Affected
- mcafee/tunnelbear
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.