OS Command Injection in Asterisk Open Source and Certified Asterisk - CVE-2019-18610
Published: November 22, 2019
Vulnerability identifier: #VU22935
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-18610
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Digium (Linux Support Services)
Affected software:
Asterisk Open Source
Certified Asterisk
Asterisk Open Source
Certified Asterisk
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the "manager.c" module. A remote authenticated Asterisk Manager Interface (AMI) user without “system” authorization can use a specially crafted “Originate” AMI request to execute arbitrary system commands.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-18610
Install updates from vendor's website.