SB2025052604 - Multiple vulnerabilities in Asterisk

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Protection mechanism failure (CVE-ID: CVE-2025-47780)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to permissions to deny command execution via the "cli_permissions.conf" file do not work as expected. A local user with access to Asterisk CLI can still execute arbitrary OS commands even if the current configuration disallows it.

2) Input validation error (CVE-ID: CVE-2025-47779)

The vulnerability allows a remote user to perform spoofing attack.

The vulnerability exists due to insufficient validation of MESSAGE SIP requests when handling the From header with a semicolon or NULL in the name portion. A remote authenticated user can spoof any user identity to send spam messages to the application users.

Remediation

Install update from vendor's website.

References

• https://github.com/asterisk/asterisk/security/advisories/GHSA-c7p6-7mvq-8jq2
• https://github.com/asterisk/asterisk/security/advisories/GHSA-2grh-7mhv-fcfw