Vulnerability CVE-2019-12572


Published: 2019-06-21

Description:
A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client 1.0.2 (build 02363) for Windows could allow an authenticated, local attacker to run arbitrary code with elevated privileges. On startup, the PIA Windows service (pia-service.exe) loads the OpenSSL library from %PROGRAMFILES%\Private Internet Access\libeay32.dll. This library attempts to load the C:\etc\ssl\openssl.cnf configuration file which does not exist. By default on Windows systems, authenticated users can create directories under C:\. A low privileged user can create a C:\etc\ssl\openssl.cnf configuration file to load a malicious OpenSSL engine library resulting in arbitrary code execution as SYSTEM when the service starts.

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

Vendor: Londontrustmedia
Product: Private internet access 
Version: 1.0.2;

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
https://blog.mirch.io/2019/06/10/cve-2019-12572-pia-windows-privilege-escalation-malicious-openssl-engine/
https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12572.txt

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