CVE-2018-11479

HIGH

Windscribe - Improper Input Validation

Title source: rule

Description

The VPN component in Windscribe 1.81 uses the OpenVPN client for connections. Also, it creates a WindScribeService.exe system process that establishes a \\.\pipe\WindscribeService named pipe endpoint that allows the Windscribe VPN process to connect and execute an OpenVPN process or other processes (like taskkill, etc.). There is no validation of the program name before constructing the lpCommandLine argument for a CreateProcess call. An attacker can run any malicious process with SYSTEM privileges through this named pipe.

Exploits (2)

exploitdb WORKING POC VERIFIED

by Metasploit · rubylocalwindows

https://www.exploit-db.com/exploits/48021

View Code ZIP pw:eip

metasploit WORKING POC EXCELLENT

by Emin Ghuliev, bcoles · rubypoc

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/windscribe_windscribeservice_priv_esc.rb

View Code ZIP pw:eip

References (2)

[Third Party Advisory] http://sqlulz.blogspot.com/2018/05/windscribe-vpn-privilege-escalation.html

[Exploit, Third Party Advisory] http://packetstormsecurity.com/files/156222/Windscribe-WindscribeService-Named-Pipe-Privilege-Escalation.html

Scores

CVSS v3 7.8

EPSS 0.2865

EPSS Percentile 96.6%

Attack Vector LOCAL

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

Details

CWE

CWE-20

Status published

Products (1)

windscribe/windscribe 1.81

Published May 25, 2018

Tracked Since Feb 18, 2026