CVE-2018-7804 Open redirect in Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200

Medium 6.1 Published 17 Dec 2018 Updated 5 Aug 2024

Attackers can redirect users to malicious sites via crafted links in Schneider Electric Modicon PLC embedded web servers.

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-2018-7804?

CVE-2018-7804 is a medium-severity vulnerability in Schneider Electric SE Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200, published on 17 Dec 2018. 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

A URL Redirection to Untrusted Site vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where a user clicking on a specially crafted link can be redirected to a URL of the attacker's choosing.

Weakness: CWE-601

Which versions are affected by CVE-2018-7804?

It affects 4 products.

Products include Schneider-Electric Modicom Bmxnor0200h Firmware, Schneider-Electric Modicom M340 Firmware, Schneider-Electric Modicom Premium Firmware, Schneider-Electric Modicom Quantum Firmware.

How do I fix CVE-2018-7804?

No fix has been published for CVE-2018-7804 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-7804 being exploited?

There is no known exploitation of CVE-2018-7804 in the wild and no public exploit code.

Sources

Also known as GHSA-prjw-g7wq-rf93.