CVE-2022-45140 WAGO: Missing Authentication for Critical Function

Critical 9.8 Published Updated

Unauthenticated attackers can write arbitrary data with root privileges to the storage, leading to remote code execution and full system compromise.

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-2022-45140?

CVE-2022-45140 is a critical missing authorization vulnerability in WAGO Compact Controller CC100 (751-9301), published on 27 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The configuration backend allows an unauthenticated user to write arbitrary data with root privileges to the storage, which could lead to unauthenticated remote code execution and full system compromise.

Weakness: CWE-306

Which versions are affected by CVE-2022-45140?

It affects 7 products.

Products include Wago 751-9301 Firmware, Wago 752-8303\/8000-002 Firmware, Wago Pfc100 Firmware, Wago Pfc200 Firmware, Wago Touch Panel 600 Advanced Firmware, Wago Touch Panel 600 Marine Firmware and 1 more.

How do I fix CVE-2022-45140?

No fix has been published for CVE-2022-45140 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-2022-45140 being exploited?

There is no known exploitation of CVE-2022-45140 in the wild and no public exploit code.

Sources

Also known as GHSA-4p8v-g44f-p8hp.

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