CVE-2023-0052 - CVE House
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Status published Critical CVE-2023-0052

SAUTER Controls Nova 200–220 Series Missing Authentication for Critical Function

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jairo Alonso Ortiz, Aarón Flecha Menéndez and Iñaki Lázaro Ayanz of S21Sec

Affected Vendor

SAUTER Controls

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Affected Software

Nova 220 (EYK220F001) DDC with BACnet connection, Nova 230 (EYK230F001) DDC with BACnet connection, Nova 106 (EYK300F001) BACnet communication card, moduNet300 (EY-AM300F001, EY-AM300F002)
Vulnerable Versions:
Firmware all versions, BACnetstac all versions

Timeline

Official Publish: January 20th, 2023
Last Modified: January 16th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)