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IcscertCVELIST:CVE-2023-1257

HistoryMar 07, 2023 - 4:54 p.m.

CVE-2023-1257 CVE-2023-1257

2023-03-0716:54:21

icscert

www.cve.org

attacker access bios

modify authentication files

device compromise

CVSS3

7.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

25.9%

JSON

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.

CNA Affected

[
  {
    "vendor": "MOXA",
    "product": "UC-8580 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.1"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-8540 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.0 to V1.2"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-8410A Series",
    "versions": [
      {
        "status": "affected",
        "version": "V2.2"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-8200 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.0 to V2.4"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-8100A-ME-T Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.0 to V1.1"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-8100 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.2"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-5100 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.2"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-3100 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.2 to V2.0"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-2100 Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.3 to V1.5"
      }
    ]
  },
  {
    "vendor": "MOXA",
    "product": "UC-2100-W Series",
    "versions": [
      {
        "status": "affected",
        "version": "V1.3 to V1.5"
      }
    ]
  }
]

References

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

CVSS3

7.6

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.8

Confidence

High

EPSS

0.001

Percentile

25.9%

JSON

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