CVE-2023-1257

Description

An attacker with physical access to the affected Moxa UC Series devices can initiate a restart of the device and gain access to its BIOS. Command line options can then be altered, allowing the attacker to access the terminal. From the terminal, the attacker can modify the device’s authentication files to create a new user and gain full access to the system.

7.6

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.10%

Third-Party Advisory cisa.gov

Affected: MOXA UC-8580 Series

Affected: MOXA UC-8540 Series

Affected: MOXA UC-8410A Series

Affected: MOXA UC-8200 Series

Affected: MOXA UC-8100A-ME-T Series

Affected: MOXA UC-8100 Series

Affected: MOXA UC-5100 Series

Affected: MOXA UC-3100 Series

Affected: MOXA UC-2100 Series

Affected: MOXA UC-2100-W Series

References

Link	Tags
https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04	third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2023-1257?: CVE-2023-1257 has been scored as a high severity vulnerability.
How to fix CVE-2023-1257?: To fix CVE-2023-1257, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-1257 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-1257 is being actively exploited. 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-2023-1257?: CVE-2023-1257 affects MOXA UC-8580 Series, MOXA UC-8540 Series, MOXA UC-8410A Series, MOXA UC-8200 Series, MOXA UC-8100A-ME-T Series, MOXA UC-8100 Series, MOXA UC-5100 Series, MOXA UC-3100 Series, MOXA UC-2100 Series, MOXA UC-2100-W Series.

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