CVE-2023-1257

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

07/03/2023

Last modified:

07/11/2023

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.

Impact

Vector 3.x

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

6.80

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:moxa:uc-2101-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:h:moxa:uc-2101-lx:-:::::::*
cpe:2.3:o:moxa:uc-2102-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:h:moxa:uc-2102-lx:-:::::::*
cpe:2.3:o:moxa:uc-2102-t-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:h:moxa:uc-2102-t-lx:-:::::::*
cpe:2.3:o:moxa:uc-2104-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:h:moxa:uc-2104-lx:-:::::::*
cpe:2.3:o:moxa:uc-2111-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:h:moxa:uc-2111-lx:-:::::::*
cpe:2.3:o:moxa:uc-2112-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:h:moxa:uc-2112-lx:-:::::::*
cpe:2.3:o:moxa:uc-2114-t-lx_firmware::::::::	1.3 (including)	1.5 (including)
cpe:2.3:o:moxa:uc-2114-t-lx_firmware:-:::::::*
cpe:2.3:h:moxa:uc-2114-t-lx:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-04