CVE-2022-40224 Denial of service in SDS-3008 Series Industrial Ethernet Switch

Medium 5.3 Published Updated

An attacker can cause a denial of service on Moxa industrial switches by sending a specially crafted HTTP message 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-2022-40224?

CVE-2022-40224 is a medium-severity denial of service vulnerability in Moxa SDS-3008 Series Industrial Ethernet Switch, published on 7 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A denial of service vulnerability exists in the web server functionality of Moxa SDS-3008 Series Industrial Ethernet Switch 2.1. A specially-crafted HTTP message header can lead to denial of service. An attacker can send an HTTP request to trigger this vulnerability.

Weakness: CWE-410

Which versions are affected by CVE-2022-40224?

It affects 2 products.

Products include Moxa Sds-3008-T Firmware, Moxa Sds-3008 Firmware.

How do I fix CVE-2022-40224?

No fix has been published for CVE-2022-40224 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-2022-40224 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40224 exists.

Sources

Also known as GHSA-96vh-xrjg-62gv.

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