HOMEVULNERABILITIESCVE-2019-12147
CRITICAL

CVE-2019-12147

CWE-88Published: October 22, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2019-12147 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sangoma2 product(s)
session border controller firmwaresession border controller
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-User-Creation.html
ADVISORYhttp://seclists.org/fulldisclosure/2019/Oct/40
ADVISORYhttp://packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-User-Creation.html
ADVISORYhttp://seclists.org/fulldisclosure/2019/Oct/40

All References (6)

→
http://packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-User-Creation.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2019/Oct/40Exploit · Mailing List · Third Party Advisory
→
https://blog.appsecco.comNot Applicable
→
http://packetstormsecurity.com/files/154914/Sangoma-SBC-2.3.23-119-GA-Unauthenticated-User-Creation.htmlExploit · Third Party Advisory · VDB Entry
→
http://seclists.org/fulldisclosure/2019/Oct/40Exploit · Mailing List · Third Party Advisory
→
https://blog.appsecco.comNot Applicable

Quick Facts

CVE IDCVE-2019-12147
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-88
CISA KEVNo
Affected1 vendor(s)
PublishedOct 22, 2019

Related CVEs (CWE-88)

CVE-2026-57572
10.0
CVE-2004-0480
10.0
CVE-2007-0882
10.0
CVE-1999-0113
10.0
CVE-2018-3856
9.9
CVE-2024-39930
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-12147 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2019-12147·NVD