CVE-2017-14438 Denial of service 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 devices by sending a large packet to port 4000/tcp.

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-2017-14438?

CVE-2017-14438 is a high-severity denial of service 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

Exploitable denial of service vulnerabilities exists in the Service Agent functionality of Moxa EDR-810 V4.1 build 17030317. A specially crafted packet can cause a denial of service. An attacker can send a large packet to 4000/tcp to trigger this vulnerability.

Weakness: CWE-20

Which versions are affected by CVE-2017-14438?

It affects 1 product.

Products include Moxa Edr-810 Firmware.

How do I fix CVE-2017-14438?

No fix has been published for CVE-2017-14438 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-14438 being exploited?

There is no known exploitation of CVE-2017-14438 in the wild and no public exploit code.

Sources

Also known as GHSA-2rxv-434v-p63q.