CVE-2020-5600 Denial of service in GOT2000 series GT27, GT25, and GT23

High 7.5 Published Updated

Remote attackers can cause denial of service or execute malicious code on Mitsubishi Electric GOT2000 HMIs via crafted packets.

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-2020-5600?

CVE-2020-5600 is a high-severity denial of service vulnerability in Mitsubishi Electric Corporation GOT2000 series GT27, GT25, and GT23, published on 7 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TCP/IP function included in the firmware of Mitsubishi Electric GOT2000 series (CoreOS with version -Y and earlier installed in GT27 Model, GT25 Model, and GT23 Model) contains a resource management error vulnerability, which may allow a remote attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.

Which versions are affected by CVE-2020-5600?

It affects 1 product.

Products include Mitsubishielectric Coreos.

How do I fix CVE-2020-5600?

No fix has been published for CVE-2020-5600 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-2020-5600 being exploited?

There is no known exploitation of CVE-2020-5600 in the wild and no public exploit code.

Sources

Also known as GHSA-wjpf-6j9q-4h5x.

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