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Debian DSA-3862-1 : puppet - security update

high Nessus Plugin ID 100432

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Synopsis

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

Description

It was discovered that unrestricted YAML deserialisation of data sent from agents to the server in the Puppet configuration management system could result in the execution of arbitrary code.

Note that this fix breaks backward compability with Puppet agents older than 3.2.2 and there is no safe way to restore it. This affects puppet agents running on Debian wheezy; we recommend to update to the puppet version shipped in wheezy-backports.

Solution

Upgrade the puppet packages.

For the stable distribution (jessie), this problem has been fixed in version 3.7.2-4+deb8u1.

See Also

https://packages.debian.org/source/jessie/puppet

https://www.debian.org/security/2017/dsa-3862

Plugin Details

Severity: High

ID: 100432

File Name: debian_DSA-3862.nasl

Version: 3.10

Type: local

Agent: unix

Published: 5/26/2017

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:puppet

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/25/2017

Reference Information

CVE: CVE-2017-2295

DSA: 3862