PT-2018-9750 · Purevpn+1 · Purevpn+1

Fabius Watson + 1 · Published 2018-04-18 · Updated 2019-10-03 · CVE-2018-10204

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: PureVPN version 6.0.1

Description: The issue concerns a privilege escalation in the sevpnclient service when using the OpenVPN protocol. The service executes openvpn.exe with a config file located at %PROGRAMDATA%purevpnconfigconfig.ovpn, which has write permissions for the Everyone group. An authenticated attacker can modify this file to specify a dynamic library plugin, allowing code execution in the context of the SYSTEM account.

Recommendations: For PureVPN version 6.0.1, consider restricting write access to the %PROGRAMDATA%purevpnconfigconfig.ovpn file to prevent modification by unauthorized users. As a temporary workaround, monitor changes to this file closely and avoid using the OpenVPN protocol until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2018-10204

Affected Products

Openvpn

Purevpn

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2018-10204 · Security Note
• https://osv.dev/vulnerability/CVE-2018-10204 · Vendor Advisory
• https://github.com/VerSprite/research/blob/master/advisories/VS-2018-021.md · Note