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

Quick assessment

Affected
SAUTER Controls Nova 220 (EYK220F001) DDC with BACnet connection
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Sauter AG Controls Nova是瑞士Sauter AG公司的一个智能楼宇自动化系统。 Sauter AG Controls Nova 200-220 Series固件3.3-006及以前版本和BACnetstac 4.2.1及以前版本存在访问控制错误漏洞，该漏洞源于其允许在没有凭证的情况下执行命令。

CVSS 9.8 · Critical EPSS 0.71% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-0052

Vulnerability Information
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Vulnerability Title
SAUTER Controls Nova 200–220 Series Missing Authentication for Critical Function
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Sauter AG Controls Nova 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sauter AG Controls Nova是瑞士Sauter AG公司的一个智能楼宇自动化系统。 Sauter AG Controls Nova 200-220 Series固件3.3-006及以前版本和BACnetstac 4.2.1及以前版本存在访问控制错误漏洞，该漏洞源于其允许在没有凭证的情况下执行命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SAUTER Controls Nova 220 (EYK220F001) DDC with BACnet connection Firmware all versions ~ 3.3-006 -
SAUTER Controls Nova 230 (EYK230F001) DDC with BACnet connection Firmware all versions ~ 3.3-006 -
SAUTER Controls Nova 106 (EYK300F001) BACnet communication card Firmware all versions ~ 3.3-006 -
SAUTER Controls moduNet300 (EY-AM300F001, EY-AM300F002) Firmware all versions ~ 3.3-006 -

II. Public POCs for CVE-2023-0052

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III. Intelligence Information for CVE-2023-0052

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Vendor Advisories for CVE-2023-0052 (1)

IV. Related Vulnerabilities

Same product: Nova 220 (EYK220F001) DDC with BACnet connection
Same vendor: SAUTER Controls
Same weakness: CWE-306

V. Comments for CVE-2023-0052

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