Vulnerability in Sangoma Session Border Controller
CVE-2019-12147
The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to Argument Injection via special characters in the username field. Upon successful exploitation, a remote unauthenticated user can create a local system user with sudo privileges, and use that user to login to the system (either via the web interface or via SSH) to achieve complete compromise of the device. This affects /var/webconfig/gui/Webconfig.inc.php and /usr/local/sng/bin/sng-user-mgmt.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Sangoma Session Border Controller
- Sangoma Session Border Controller Firmware — versions 2.3.23-119-ga
Weakness classification (CWE)
References
- blog.appsecco.com (Not Applicable)
- seclists.org/fulldisclosure/2019/Oct/40 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-… (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-12147?
- CVE-2019-12147 is a critical-severity vulnerability in Sangoma Session Border Controller, classified under Argument Injection. CVSS score: 9.8/10. Published 2019-10-22.
- How severe is CVE-2019-12147?
- Critical severity. CVSS v3 base score is 9.8 out of 10.