CVE-2023-1150 WAGO: Series 750-3x/-8x prone to MODBUS server DoS

High 7.5 Published Updated

Unauthenticated remote attackers can cause a denial of service on WAGO MODBUS servers by sending specially 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-2023-1150?

CVE-2023-1150 is a high-severity denial of service vulnerability in WAGO 750-332, published on 26 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.

Weakness: CWE-772

Which versions are affected by CVE-2023-1150?

It affects 18 products.

Products include Wago 750-362\/000-001 Firmware, Wago 750-362\/040-000 Firmware, Wago 750-362 Firmware, Wago 750-363\/040-000 Firmware, Wago 750-363 Firmware, Wago 750-364\/040-010 Firmware and 12 more.

How do I fix CVE-2023-1150?

No fix has been published for CVE-2023-1150 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-2023-1150 being exploited?

There is no known exploitation of CVE-2023-1150 in the wild and no public exploit code.

Sources

Also known as GHSA-phj7-pw7p-pxq8.

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