RCE in 3cx Phone System
CVE-2019-9972
PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an authenticated attacker to run arbitrary commands with the phonesystem user privileges because of "<space><space> followed by <shift><enter>" mishandling.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- 3cx Phone System
- 3cx Phone System Firmware — versions 16.0.0.1570
- Debian Linux
Weakness classification (CWE)
References
- www.gosecure.net/blog (Third Party Advisory)
- www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-imp… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-9972?
- CVE-2019-9972 is a high-severity vulnerability in 3cx Phone System, classified under Command Injection. CVSS score: 8.8/10. Published 2022-06-07.
- How severe is CVE-2019-9972?
- High severity. CVSS v3 base score is 8.8 out of 10.