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Debian DSA-4637-1 : network-manager-ssh - security update

critical Nessus Plugin ID 134353

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Synopsis

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

Description

Kobus van Schoor discovered that network-manager-ssh, a plugin to provide VPN integration for SSH in NetworkManager, is prone to a privilege escalation vulnerability. A local user with privileges to modify a connection can take advantage of this flaw to execute arbitrary commands as root.

This update drops support to pass extra SSH options to the ssh invocation.

Solution

Upgrade the network-manager-ssh packages.

For the oldstable distribution (stretch), this problem has been fixed in version 1.2.1-1+deb9u1.

For the stable distribution (buster), this problem has been fixed in version 1.2.10-1+deb10u1.

See Also

http://www.nessus.org/u?1e4cbf32

https://www.debian.org/security/2020/dsa-4637

Plugin Details

Severity: Critical

ID: 134353

File Name: debian_DSA-4637.nasl

Version: 1.3

Type: local

Agent: unix

Published: 3/10/2020

Updated: 3/25/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-9355

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:network-manager-ssh, cpe:/o:debian:debian_linux:9.0, cpe:/o:debian:debian_linux:10.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/9/2020

Vulnerability Publication Date: 2/23/2020

Reference Information

CVE: CVE-2020-9355

DSA: 4637