CVE-2025-47780
Asterisk is an open-source private branch exchange (PBX).
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Sangoma | Asterisk | before 18.26.2 from 20.0.0 before 20.14.1 from 21.0.0 before 21.9.1 from 22.0.0 before 22.4.1 |
| Sangoma | Certified Asterisk | before 18.9 Versions 18.9, 20.7 |