{"id":"CVE-2019-9971","aliases":["EUVD-2019-19325","GHSA-jmfj-wx65-4fr4"],"status":"published","title":"PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an...","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02128,"percentile":0.8205,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2022-06-07T17:56:52Z","modified":"2026-06-17T02:44:57Z","products":[{"vendor":"3cx","product":"phone_system_firmware"},{"vendor":"debian","product":"debian_linux"}],"references":[{"url":"https://www.securusglobal.com/community/2014/03/17/how-i-got-root-with-sudo/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.gosecure.net/blog","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9971"},{"url":"https://github.com/advisories/GHSA-jmfj-wx65-4fr4"}],"sources":{"cve":[{"id":"CVE-2019-9971","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.","status":"published","published":"2022-06-07T17:56:52Z","modified":"2024-08-04T22:10:08.51Z","updated_at":"2026-11-02T14:20:20.397093Z"}],"euvd":[{"id":"EUVD-2019-19325","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.","status":"published","published":"2022-06-07T17:56:52Z","modified":"2024-08-04T22:10:08Z","updated_at":"2026-11-03T02:40:54.59684Z"}],"ghsa":[{"id":"GHSA-jmfj-wx65-4fr4","title":"PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an...","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.","status":"published","published":"2022-06-08T00:00:39Z","modified":"2023-01-27T05:03:26Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:42:14.754174Z"}],"nvd":[{"id":"CVE-2019-9971","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.","status":"published","published":"2022-06-07T18:15:10.187Z","modified":"2026-06-17T02:44:57.403Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:05:49.099942Z"}]}}