CVE-2019-18269 Missing authorization in Omron PLC CJ Series

High 8.6 Published Updated

Attackers can bypass access controls on Omron PLCs due to unrestricted external lock access, potentially compromising industrial control systems.

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-2019-18269?

CVE-2019-18269 is a high-severity missing authorization vulnerability in Omron PLC CJ Series, published on 16 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Omron’s CS and CJ series PLCs have an unrestricted externally accessible lock vulnerability.

Weakness: CWE-412

Which versions are affected by CVE-2019-18269?

It affects 2 products.

Products include Omron Plc Cj Firmware, Omron Plc Cs Firmware.

How do I fix CVE-2019-18269?

No fix has been published for CVE-2019-18269 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-18269 being exploited?

There is no known exploitation of CVE-2019-18269 in the wild and no public exploit code.

Sources

Also known as GHSA-5xrh-m4jr-pgwp.

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