VULNERABILITY

Debian: CVE-2025-47780: asterisk -- security update

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Debian: CVE-2025-47780: asterisk -- security update

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
05/22/2025
Created
05/29/2025
Added
05/28/2025
Modified
06/04/2025

Description

Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, trying to disallow shell commands to be run via the Asterisk command line interface (CLI) by configuring `cli_permissions.conf` (e.g. with the config line `deny=!*`) does not work which could lead to a security risk. If an administrator running an Asterisk instance relies on the `cli_permissions.conf` file to work and expects it to deny all attempts to execute shell commands, then this could lead to a security vulnerability. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.

Solution(s)

  • debian-upgrade-asterisk

References

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