CVE-2018-10900

Publication date 26 July 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Network Manager VPNC plugin (aka networkmanager-vpnc) before version 1.2.6 is vulnerable to a privilege escalation attack. A new line character can be used to inject a Password helper parameter into the configuration data passed to VPNC, allowing an attacker to execute arbitrary commands as root.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
network-manager-vpnc	18.04 LTS bionic	Fixed 1.2.4-6ubuntu0.1
	16.04 LTS xenial	Fixed 1.1.93-1ubuntu0.1
	14.04 LTS trusty	Fixed 0.9.8.6-1ubuntu2.1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
network-manager-vpnc	Upstream: 07ac18a

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.8 · High

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality impact	High
Integrity impact	High
Availability impact	High

Scores

Parameter	Value
Base score	7.8 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H