CVE-2019-12147

Sangoma SBC 2.3.23-119-GA Unauthenticated User Creation

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La interfaz web GA de Sangoma Session Border Controller (SBC) versión 2.3.23-119, es vulnerable a una Inyección de Argumentos mediante caracteres especiales en el campo username. Tras una explotación con éxito, un usuario no autenticado remoto puede crear un usuario del sistema local con privilegios de sudo, y usar ese usuario para iniciar sesión en el sistema (bien sea por medio de la interfaz web o mediante SSH) para lograr un compromiso completo del dispositivo. Esto afecta a los archivos /var/webconfig/gui/Webconfig.inc.php y /usr/local/sng/bin/sng-user-mgmt.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-05-16 CVE Reserved
2019-10-18 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-11-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CAPEC

References (3)

URL	Tag	Source
https://blog.appsecco.com	Not Applicable

URL	Date	SRC
http://packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-User-Creation.html	2024-08-04
http://seclists.org/fulldisclosure/2019/Oct/40	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sangoma Search vendor "Sangoma"	Session Border Controller Firmware Search vendor "Sangoma" for product "Session Border Controller Firmware"	2.3.23-119-ga Search vendor "Sangoma" for product "Session Border Controller Firmware" and version "2.3.23-119-ga"	-	Affected	in	Sangoma Search vendor "Sangoma"	Session Border Controller Search vendor "Sangoma" for product "Session Border Controller"	-	-	Safe