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Debian DLA-1122-1 : asterisk security update

critical Nessus Plugin ID 103683

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Synopsis

The remote Debian host is missing a security update.

Description

A security vulnerability was discovered in Asterisk, an Open Source PBX and telephony toolkit, that may lead to unauthorized command execution.

The app_minivm module has an 'externnotify' program configuration option that is executed by the MinivmNotify dialplan application. The application uses the caller-id name and number as part of a built string passed to the OS shell for interpretation and execution. Since the caller-id name and number can come from an untrusted source, a crafted caller-id name or number allows an arbitrary shell command injection.

For Debian 7 'Wheezy', these problems have been fixed in version 1:1.8.13.1~dfsg1-3+deb7u7.

We recommend that you upgrade your asterisk 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/2017/10/msg00002.html

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

Plugin Details

Severity: Critical

ID: 103683

File Name: debian_DLA-1122.nasl

Version: 2.8

Type: local

Agent: unix

Published: 10/6/2017

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, 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 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:asterisk-mp3, p-cpe:/a:debian:debian_linux:asterisk, p-cpe:/a:debian:debian_linux:asterisk-mysql, p-cpe:/a:debian:debian_linux:asterisk-doc, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:asterisk-dbg, p-cpe:/a:debian:debian_linux:asterisk-dahdi, p-cpe:/a:debian:debian_linux:asterisk-voicemail, p-cpe:/a:debian:debian_linux:asterisk-dev, p-cpe:/a:debian:debian_linux:asterisk-ooh323, p-cpe:/a:debian:debian_linux:asterisk-modules, p-cpe:/a:debian:debian_linux:asterisk-voicemail-imapstorage, p-cpe:/a:debian:debian_linux:asterisk-voicemail-odbcstorage, p-cpe:/a:debian:debian_linux:asterisk-mobile, p-cpe:/a:debian:debian_linux:asterisk-config

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/5/2017

Reference Information

CVE: CVE-2017-14100