CVE-2018-10632 Denial of service in NPort 5210, 5230, and 5232

High 7.5 Published Updated

A malicious actor can cause a denial-of-service condition on Moxa NPort serial device servers by requesting excessive resources.

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-2018-10632?

CVE-2018-10632 is a high-severity denial of service vulnerability in Moxa NPort 5210, 5230, and 5232, published on 24 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Moxa NPort 5210, 5230, and 5232 versions 2.9 build 17030709 and prior, the amount of resources requested by a malicious actor are not restricted, allowing for a denial-of-service condition.

Weakness: CWE-400

Which versions are affected by CVE-2018-10632?

It affects 3 products.

Products include Moxa Nport 5210 Firmware, Moxa Nport 5230 Firmware, Moxa Nport 5232 Firmware.

How do I fix CVE-2018-10632?

No fix has been published for CVE-2018-10632 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-2018-10632 being exploited?

There is no known exploitation of CVE-2018-10632 in the wild and no public exploit code.

Sources

Also known as GHSA-g28g-qq9m-986c.

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