CVE-2019-6559 Denial of service in Moxa IKS, EDS

What is CVE-2019-6559?

CVE-2019-6559 is a medium-severity denial of service vulnerability in ICS-CERT Moxa IKS, EDS, published on 5 Mar 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Moxa IKS and EDS allow remote authenticated users to cause a denial of service via a specially crafted packet, which may cause the switch to crash.

Weakness: CWE-400

Which versions are affected by CVE-2019-6559?

It affects 4 products.

Products include Moxa Eds-405a Firmware, Moxa Eds-408a Firmware, Moxa Eds-510a Firmware, Moxa Iks-G6824a Firmware.

How do I fix CVE-2019-6559?

No fix has been published for CVE-2019-6559 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-2019-6559 being exploited?

There is no known exploitation of CVE-2019-6559 in the wild and no public exploit code.

Other vulnerabilities in ICS-CERT Moxa IKS, EDS

• CVE-2019-6526 Information disclosure in IKS, EDS Critical 9.8
• CVE-2019-6524 Auth bypass in Moxa IKS, EDS Critical 9.8
• CVE-2019-6557 Memory corruption in Moxa IKS, EDS Critical 9.8
• CVE-2019-6563 Weak cryptography in Moxa IKS, EDS Critical 9.8
• CVE-2019-6522 Information disclosure in Moxa IKS, EDS Critical 9.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8pch-jp5p-47jq.