Strix
26.1K

CVE-2023-1257

MEDIUMCVSS 6.8/10EPSS 0.32%

Last modified

CVE-2023-1257 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.8/10

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

EPSS Probability
0.32%

23.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MoxaUc-2101-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2102-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2102-T-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2104-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2111-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2112-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2114-T-Lx Firmware>= 1.3, <= 1.5
MoxaUc-2114-T-Lx FirmwareAll versions
MoxaUc-2116-T-Lx Firmware>= 1.3, <= 1.5
MoxaUc-3101-T-Ap-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3101-T-Eu-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3101-T-Us-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3111-T-Ap-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3111-T-Ap-Lx-Nw Firmware>= 1.2, <= 2.0
MoxaUc-3111-T-Eu-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3111-T-Eu-Lx-Nw Firmware>= 1.2, <= 2.0
MoxaUc-3111-T-Us-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3111-T-Us-Lx-Nw Firmware>= 1.2, <= 2.0
MoxaUc-3121-T-Ap-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3121-T-Eu-Lx Firmware>= 1.2, <= 2.0
MoxaUc-3121-T-Us-Lx Firmware>= 1.2, <= 2.0
MoxaUc-5101-Lx Firmware1.2
MoxaUc-5101-T-Lx Firmware1.2
MoxaUc-5102-Lx Firmware1.2
MoxaUc-5102-T-Lx Firmware1.2
MoxaUc-5111-Lx Firmware1.2
MoxaUc-5111-T-Lx Firmware1.2
MoxaUc-5112-Lx Firmware1.2
MoxaUc-5112-T-Lx Firmware1.2
MoxaUc-8112-Lx Firmware1.2
MoxaUc-8131-Lx Firmware1.2
MoxaUc-8132-Lx Firmware1.2
MoxaUc-8162-Lx Firmware1.2
MoxaUc-8112-Me-T-Lx Firmware>= 1.0, <= 1.1
MoxaUc-8112-Me-T-Lx1 Firmware>= 1.0, <= 1.1
MoxaUc-8112a-Me-T-Lx Firmware>= 1.0, <= 1.1
MoxaUc-8210-T-Lx-S Firmware>= 1.0, <= 2.4
MoxaUc-8220-T-Lx Firmware>= 1.0, <= 2.4
MoxaUc-8220-T-Lx-Ap-S Firmware>= 1.0, <= 2.4
MoxaUc-8220-T-Lx-Eu-S Firmware>= 1.0, <= 2.4
MoxaUc-8220-T-Lx-S Firmware>= 1.0, <= 2.4
MoxaUc-8220-T-Lx-Us-S Firmware>= 1.0, <= 2.4
MoxaUc-8410a-Lx Firmware2.2
MoxaUc-8410a-Nw-Lx Firmware2.2
MoxaUc-8410a-Nw-T-Lx Firmware2.2
MoxaUc-8410a-T-Lx Firmware2.2
MoxaUc-8540-Lx Firmware>= 1.0, <= 1.2
MoxaUc-8540-T-Ct-Lx Firmware>= 1.0, <= 1.2
MoxaUc-8540-T-Lx Firmware>= 1.0, <= 1.2
MoxaUc-8580-Lx Firmware1.1

Showing 50 of 55 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-1257?
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.
How severe is CVE-2023-1257?
CVE-2023-1257 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2023-1257?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1257?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST