CVE-2023-42770 - CVE House
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Status published Critical CVE-2023-42770

Red Lion Controls Sixnet RTU Authentication Bypass Using An Alternative Path Or Channel

Vulnerability Description

Red Lion SixTRAK and VersaTRAK Series RTUs with authenticated users enabled (UDR-A) any Sixnet UDR message will meet an authentication challenge over UDP/IP. When the same message is received over TCP/IP the RTU will simply accept the message with no authentication challenge.

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:

  • Nitsan Litov of Claroty Research - Team82 reported these vulnerabilities to CISA.

References

More from Red Lion Controls

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CVE-2023-40151
Red Lion Controls Sixnet RTU Exposed Dangerous Method Or Function
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CVE-2022-3090
Red Lion Controls Crimson 3.0 versions 707.000 and prior, Crimson...
High 7.5
CVE-2016-9335
A hard-coded cryptographic key vulnerability was identified in Red Lion...
Critical 10

Affected Vendor

Red Lion Controls

View all reports →

Affected Software

ST-IPm-8460, ST-IPm-6350, VT-mIPm-135-D, VT-mIPm-245-D, VT-IPm2m-213-D, VT-IPm2m-113-D
Vulnerable Versions:
6.0.202, 4.9.114

Timeline

Official Publish: November 21st, 2023
Last Modified: June 11th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

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

Weaknesses (CWE)

CWE-288

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1078 Valid Accounts
Persistence
T1550 Use Alternate Authentication Material
Defense Evasion
T1021 Remote Services
Lateral Movement
T1098 Account Manipulation
Privilege Escalation