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.

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.

EPSS: 0.026 (83.8th percentile) — read the EPSS interpretation.

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.

Affected products

Sangoma Session_border_controller
Sangoma Session_border_controller_firmware — versions 2.3.23-119-ga
N/a — versions n/a

Weakness classification (CWE)

CWE-88 — Argument Injection

References

cve@mitre.org (x_refsource_MISC, Not Applicable)
cve@mitre.org (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

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.