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Debian DLA-986-1 : zookeeper security update

high Nessus Plugin ID 100816

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Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that Zookeeper, a service for maintaining configuration information, didn't restrict access to the computationally expensive wchp/wchc commands which could result in denial of service by elevated CPU consumption.

This update disables those two commands by default. The new configuration option '4lw.commands.whitelist' can be used to whitelist commands selectively (and the full set of commands can be restored with '*')

For Debian 7 'Wheezy', these problems have been fixed in version 3.4.5+dfsg-2+deb7u1.

We recommend that you upgrade your zookeeper packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/06/msg00015.html

https://packages.debian.org/source/wheezy/zookeeper

Plugin Details

Severity: High

ID: 100816

File Name: debian_DLA-986.nasl

Version: 3.8

Type: local

Agent: unix

Published: 6/16/2017

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libzookeeper-java, p-cpe:/a:debian:debian_linux:libzookeeper-java-doc, p-cpe:/a:debian:debian_linux:libzookeeper-mt-dev, p-cpe:/a:debian:debian_linux:libzookeeper-mt2, p-cpe:/a:debian:debian_linux:libzookeeper-st-dev, p-cpe:/a:debian:debian_linux:libzookeeper-st2, p-cpe:/a:debian:debian_linux:libzookeeper2, p-cpe:/a:debian:debian_linux:python-zookeeper, p-cpe:/a:debian:debian_linux:zookeeper, p-cpe:/a:debian:debian_linux:zookeeper-bin, p-cpe:/a:debian:debian_linux:zookeeperd, cpe:/o:debian:debian_linux:7.0

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: 6/15/2017

Reference Information

CVE: CVE-2017-5637