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Debian dla-4206 : asterisk - security update

medium Nessus Plugin ID 237665

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4206 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4206-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany June 02, 2025 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : asterisk Version : 1:16.28.0~dfsg-0+deb11u7 CVE ID : CVE-2025-47779 CVE-2025-47780 Debian Bug : 1106528 1106530

 Two security vulnerabilities have been discovered in Asterisk, an Open Source Private Branch Exchange.

 CVE-2025-47779

 SIP requests of the type MESSAGE (RFC 3428) authentication do not get proper alignment. An authenticated attacker can spoof any user identity to send spam messages to the user with their authorization token. Abuse of this security issue allows authenticated attackers to send fake chat messages that can be spoofed to appear to come from trusted entities.

 CVE-2025-47780

 Trying to disallow shell commands to be run via the Asterisk CLI by configuring cli_permissions.conf (e.g. with the config line deny=!*) does not work which could lead to a security risk.
 A new asterisk.conf option 'disable_remote_console_shell' has been added that, when set, will prevent remote consoles from executing shell commands using the '!' prefix.

 For Debian 11 bullseye, these problems have been fixed in version 1:16.28.0~dfsg-0+deb11u7.

 We recommend that you upgrade your asterisk packages.

 For the detailed security status of asterisk please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/asterisk

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the asterisk packages.

See Also

https://security-tracker.debian.org/tracker/source-package/asterisk

https://security-tracker.debian.org/tracker/CVE-2025-47779

https://security-tracker.debian.org/tracker/CVE-2025-47780

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

Plugin Details

Severity: Medium

ID: 237665

File Name: debian_DLA-4206.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/2/2025

Updated: 6/2/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-47779

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2025-47780

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:asterisk-modules, p-cpe:/a:debian:debian_linux:asterisk-dahdi, p-cpe:/a:debian:debian_linux:asterisk-mysql, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:asterisk-mobile, p-cpe:/a:debian:debian_linux:asterisk-ooh323, p-cpe:/a:debian:debian_linux:asterisk-dev, p-cpe:/a:debian:debian_linux:asterisk-voicemail-odbcstorage, p-cpe:/a:debian:debian_linux:asterisk-voicemail-imapstorage, p-cpe:/a:debian:debian_linux:asterisk-mp3, p-cpe:/a:debian:debian_linux:asterisk-vpb, p-cpe:/a:debian:debian_linux:asterisk-tests, p-cpe:/a:debian:debian_linux:asterisk-voicemail, p-cpe:/a:debian:debian_linux:asterisk-config, p-cpe:/a:debian:debian_linux:asterisk, p-cpe:/a:debian:debian_linux:asterisk-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2025

Vulnerability Publication Date: 5/22/2025

Reference Information

CVE: CVE-2025-47779, CVE-2025-47780