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Multiple UC Series IPC SSH Vulnerability

Published: June 20, 2024

This Alert Is From MOXA

As Industrial IoT (IIoT) adoption continues to proliferate, cybersecurity has become one of the top priorities. The Moxa Product Security Incident Response Team (PSIRT) takes a proactive approach to protect products from cybersecurity vulnerabilities. Moxa PSIRT investigates all reports of vulnerabilities that could potentially affect Moxa products. Moxa created a vulnerability management policy to provide guidance and information to our customers in the event of a reported vulnerability. The management policy ensures that Moxa’s customers have steady, unambiguous resources to help them understand how Moxa resolves or mitigates reported vulnerabilities. For any queries, please email [email protected].

Multiple UC series IPC are affected by CVE-2023-48795. These vulnerabilities are caused by insufficient integrity checks of packets during a handshake. An attacker in a network position between the client and server could omit some negotiation message, forcing to downgrade or disable some security features without detection. This vulnerability may lead to bypass authentication.

The identified vulnerability types and potential impacts are shown below:

Item Vulnerability Type Impact
1

Improper Validation of Integrity Check Value (CWE-354)

CVE-2023-48795

 An attacker may bypass the authentication mechanism.

Vulnerability Scoring Details 

ID
CVSS
Vector
Remote Exploit without Auth?
CVE-2023-48795

5.9

 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Yes

 

This alert has come from: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-247816-multiple-uc-series-ipc-ssh-vulnerability