CVE-2017-14100
CriticalSummary
In Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1, unauthorized command execution is possible. The app_minivm module has an 'externnotify' program configuration option that is executed by the MinivmNotify dialplan application, allowing arbitrary shell command injection.
Risk Assessment
An attacker can exploit this vulnerability to execute arbitrary commands on the operating system, potentially leading to serious security breaches and data loss.
Recommendation
It is recommended to update Asterisk to the latest version to mitigate this vulnerability and review application configurations to limit command injection possibilities.
Original NVD description (English source)
In Asterisk 11.x before 11.25.2, 13.x before 13.17.1, and 14.x before 14.6.1 and Certified Asterisk 11.x before 11.6-cert17 and 13.x before 13.13-cert5, unauthorized command execution is possible. 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.