CVE-2019-18233 Cross-site scripting in Advantech Spectre RT Industrial Routers ERT351

Medium 6.1 Published Updated

Attackers can execute arbitrary scripts in the context of the Advantech Spectre RT Industrial Router via reflected XSS in error responses.

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

What is CVE-2019-18233?

CVE-2019-18233 is a medium-severity cross-site scripting vulnerability in Advantech Spectre RT Industrial Routers ERT351, published on 17 Mar 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

In Advantech Spectre RT Industrial Routers ERT351 5.1.3 and prior, the affected product does not neutralize special characters in the error response, allowing attackers to use a reflected XSS attack.

Weakness: CWE-79

Which versions are affected by CVE-2019-18233?

It affects 1 product.

Products include Advantech Spectre Rt Ert351 Firmware.

How do I fix CVE-2019-18233?

No fix has been published for CVE-2019-18233 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-2019-18233 being exploited?

There is no known exploitation of CVE-2019-18233 in the wild and no public exploit code.

Sources

Also known as GHSA-rh8p-gfqq-w9cm.

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