Description
PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an attacker to gain root privileges by using sudo with the tcpdump command, without a password. This occurs because the -z (aka postrotate-command) option to tcpdump can be unsafe when used in conjunction with sudo.
References (3)
Core 3
Core References
Third Party Advisory x_refsource_misc
https://www.securusglobal.com/community/2014/03/17/how-i-got-root-with-sudo/
Third Party Advisory x_refsource_misc
https://www.gosecure.net/blog
Exploit, Third Party Advisory x_refsource_misc
https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/
Scores
CVSS v3
8.8
EPSS
0.0157
EPSS Percentile
72.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-269
Status
published
Products (2)
3cx/phone_system_firmware
16.0.0.1570
debian/debian_linux
Published
Jun 07, 2022
Tracked Since
Feb 18, 2026