CVE-2019-12148

Session Border Controller Firmware vulnerability

CVSS

9.8

EPSS

3.5%

EPSS pct

88th

Exploited

No known

The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to an authentication bypass via an argument injection vulnerability involving special characters in the username field. Upon successful exploitation, a remote unauthenticated user can login into the device's admin web portal without providing any credentials. This affects /var/webconfig/gui/Webconfig.inc.php.

Affected vendor

Sangoma

Affected product

Session Border Controller Firmware

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-88 — Argument Injection

Published

2019-10-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2019-12148

Confirm whether Sangoma Session Border Controller Firmware is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-12148.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-12148

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-12148 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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