Debian DSA-4253-1 : network-manager-vpnc - security update

High Nessus Plugin ID 111234

Synopsis

The remote Debian host is missing a security-related update.

Description

Denis Andzakovic discovered that network-manager-vpnc, a plugin to provide VPNC support for NetworkManager, is prone to a privilege escalation vulnerability. A newline character can be used to inject a Password helper parameter into the configuration data passed to vpnc, allowing a local user with privileges to modify a system connection to execute arbitrary commands as root.

Solution

Upgrade the network-manager-vpnc packages.

For the stable distribution (stretch), this problem has been fixed in version 1.2.4-4+deb9u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=904255

http://www.nessus.org/u?88e4554c

https://packages.debian.org/source/stretch/network-manager-vpnc

https://www.debian.org/security/2018/dsa-4253

Plugin Details

Severity: High

ID: 111234

File Name: debian_DSA-4253.nasl

Version: 1.5

Type: local

Agent: unix

Published: 2018/07/24

Modified: 2018/11/13

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0

Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:network-manager-vpnc, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/07/23

Exploitable With

Metasploit (Network Manager VPNC Username Privilege Escalation)

Reference Information

CVE: CVE-2018-10900

DSA: 4253