CVE-2017-14436 Null dereference in Moxa

High 7.5 Published 14 May 2018 Updated 17 Sep 2024

An attacker can cause a denial of service on Moxa EDR-810 routers by sending a crafted HTTP GET request without a cookie header.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-14436?

CVE-2017-14436 is a high-severity vulnerability in Talos Moxa, published on 14 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exploitable denial of service vulnerability exists in the web server functionality of Moxa EDR-810 V4.1 build 17030317. A specially crafted HTTP URI can cause a null pointer dereference resulting in denial of service. An attacker can send a GET request to "/MOXA\_CFG2.ini" without a cookie header to trigger this vulnerability.

Weakness: CWE-476

Which versions are affected by CVE-2017-14436?

It affects 1 product.

Products include Moxa Edr-810 Firmware.

How do I fix CVE-2017-14436?

No fix has been published for CVE-2017-14436 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-14436 being exploited?

There is no known exploitation of CVE-2017-14436 in the wild and no public exploit code.

Sources

Also known as GHSA-6444-6h76-2fx4.