CVE-2023-46142 PHOENIX CONTACT: Insufficient Read and Write Protection to Logic and Runtime Data in PLCnext Control

High 8.8 Published Updated

Remote attackers with low privileges can gain full access to PHOENIX CONTACT PLCnext devices due to insufficient read and write protections on critical resources.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-46142?

CVE-2023-46142 is a high-severity missing authorization vulnerability in PHOENIX CONTACT AXC F 1152, published on 14 Dec 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A incorrect permission assignment for critical resource vulnerability in PLCnext products allows an remote attacker with low privileges to gain full access on the affected devices.

Weakness: CWE-732

Which versions are affected by CVE-2023-46142?

It affects 9 products.

Products include Phoenixcontact Axc F 1152 Firmware, Phoenixcontact Axc F 2152 Firmware, Phoenixcontact Axc F 3152 Firmware, Phoenixcontact Bpc 9102s Firmware, Phoenixcontact Epc 1502 Firmware, Phoenixcontact Epc 1522 Firmware and 3 more.

How do I fix CVE-2023-46142?

No fix has been published for CVE-2023-46142 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-2023-46142 being exploited?

There is no known exploitation of CVE-2023-46142 in the wild and no public exploit code.

Sources

Also known as GHSA-m643-p8j3-4h5x.

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