SARA / Free Tools / CVE / CVE-2023-1257

CVE-2023-1257 — An attacker with physical access to the affected Moxa UC Series devices can init

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’

CVSS
7.6 HIGH
EPSS
0.10% (top 72.20%)
CWE
—
Published
2023-03-07T16:54:21.053Z
Last modified
2025-01-16T21:55:20.265Z
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

01What is this vulnerability?

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.

02Affected products

VendorProductVersions
MOXAUC8580 Series — V1.1
MOXAUC8540 Series — V1.0 to V1.2
MOXAUC8410A Series — V2.2
MOXAUC8200 Series — V1.0 to V2.4
MOXAUC8100A-ME-T Series — V1.0 to V1.1
MOXAUC8100 Series — V1.2
MOXAUC5100 Series — V1.2
MOXAUC3100 Series — V1.2 to V2.0
MOXAUC2100 Series — V1.3 to V1.5
MOXAUC2100-W Series — V1.3 to V1.5

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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