CVE-2023-5347

Public Exploit
Unauthenticated Firmware Upgrade

Description

An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables. This issue affects JetNet devices older than firmware version 2024/01.

Remediation

Workaround:

  • See:  https://www.beijerelectronics.com/en/support/Help___online?docId=69947 https://www.beijerelectronics.com/en/support/Help___online

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.22%
Vendor Advisory beijerelectronics.com
Affected: Korenix JetNet Series
Published at:
Updated at:

References

Link Tags
https://www.beijerelectronics.com/en/support/Help___online?docId=69947 vendor advisory
https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/ third party advisory exploit
http://seclists.org/fulldisclosure/2024/Jan/11 mailing list third party advisory exploit
http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.html third party advisory vdb entry exploit

Frequently Asked Questions

What is the severity of CVE-2023-5347?
CVE-2023-5347 has been scored as a critical severity vulnerability.
How to fix CVE-2023-5347?
As a workaround for remediating CVE-2023-5347: See:  https://www.beijerelectronics.com/en/support/Help___online?docId=69947 https://www.beijerelectronics.com/en/support/Help___online
Is CVE-2023-5347 being actively exploited in the wild?
It is possible that CVE-2023-5347 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5347?
CVE-2023-5347 affects Korenix JetNet Series.
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