CVE-2019-1956 Cisco SPA112 2-Port Phone Adapter Stored Cross-Site Scripting Vulnerability

Medium 4.8 Published Updated

An authenticated attacker can inject malicious scripts into the Cisco SPA112 web interface, allowing execution of arbitrary code or access to sensitive browser information.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-1956?

CVE-2019-1956 is a medium-severity cross-site scripting vulnerability in Cisco SPA112 2-Port Phone Adapter, published on 8 Aug 2019. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability in the web-based interface of the Cisco SPA112 2-Port Phone Adapter could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against another user of the device. The vulnerability is due to insufficient validation of user-supplied input by the web-based interface of the affected device. An attacker could exploit this vulnerability by inserting malicious code in one of the configuration fields. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Weakness: CWE-79

Which versions are affected by CVE-2019-1956?

It affects 1 product.

Products include Cisco Spa112 2-Port Phone Adapter Firmware.

How do I fix CVE-2019-1956?

No fix has been published for CVE-2019-1956 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-1956 being exploited?

There is no known exploitation of CVE-2019-1956 in the wild and no public exploit code.

Sources

Also known as GHSA-44g4-8xv8-c7r7.

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