Improper Privilege Management in Asterisk Open Source and Certified Asterisk - CVE-2022-42706
Published: December 2, 2022
Vulnerability identifier: #VU69828
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N]
CVE-ID: CVE-2022-42706
CWE-ID: CWE-269
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges.
The vulnerability exists due to improper privilege management. A remote user with “config” permissions can view files outside of Asterisk directory via GetConfig AMI Action even if “live_dangerously" is set to "no".
Affected software
Asterisk Open Source
Certified Asterisk
Debian Linux
asterisk (Debian package)
Certified Asterisk
Debian Linux
asterisk (Debian package)
How to mitigate CVE-2022-42706
Install updates from vendor's website.
Asterisk Open Source - addressed in versions 16.29.1, 18.15.1, 19.7.1, 20.0.1
Certified Asterisk - update to 18.9-cert3
asterisk (Debian package) - update to 1:16.28.0~dfsg-0+deb11u2
Certified Asterisk - update to 18.9-cert3
asterisk (Debian package) - update to 1:16.28.0~dfsg-0+deb11u2