CVE-2023-0052 SAUTER Controls Nova 200–220 Series Missing Authentication for Critical Function

Critical 9.8 Published Updated

Unauthorized users can execute commands and modify configurations on SAUTER Controls Nova devices due to missing authentication for critical functions.

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-2023-0052?

CVE-2023-0052 is a critical missing authorization vulnerability in SAUTER Controls Nova 106 (EYK300F001) BACnet communication card, published on 20 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SAUTER Controls Nova 200–220 Series with firmware version 3.3-006 and prior and BACnetstac version 4.2.1 and prior allows the execution of commands without credentials. As Telnet and file transfer protocol (FTP) are the only protocols available for device management, an unauthorized user could access the system and modify the device configuration, which could result in the unauthorized user executing unrestricted malicious commands.

Weakness: CWE-306

Which versions are affected by CVE-2023-0052?

It affects 5 products.

Products include Sauter-Controls Modunet300 Ey-Am300f001 Firmware, Sauter-Controls Modunet300 Ey-Am300f002 Firmware, Sauter-Controls Nova 106 Eyk300f001 Firmware, Sauter-Controls Nova 220 Eyk220f001 Firmware, Sauter-Controls Nova 230 Eyk230f001 Firmware.

How do I fix CVE-2023-0052?

No fix has been published for CVE-2023-0052 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-2023-0052 being exploited?

There is no known exploitation of CVE-2023-0052 in the wild and no public exploit code.

Sources

Also known as GHSA-fr44-f297-ppg9.

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