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JpcertCVE-2023-38744

HistoryAug 03, 2023 - 5:15 a.m.

CVE-2023-38744

2023-08-0305:15:10

jpcert

web.nvd.nist.gov

cve-2023-38744

dos vulnerability

ethernet/ip

cj series

cj2 cpu

improper validation

nvd

security issue

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.002

Percentile

55.0%

JSON

Denial-of-service (DoS) vulnerability due to improper validation of specified type of input issue exists in the built-in EtherNet/IP port of the CJ Series CJ2 CPU unit and the communication function of the CS/CJ Series EtherNet/IP unit. If an affected product receives a packet which is specially crafted by a remote unauthenticated attacker, the unit of the affected product may fall into a denial-of-service (DoS) condition. Affected products/versions are as follows: CJ2M CPU Unit CJ2M-CPU3[] Unit version of the built-in EtherNet/IP section Ver. 2.18 and earlier, CJ2H CPU Unit CJ2H-CPU6[]-EIP Unit version of the built-in EtherNet/IP section Ver. 3.04 and earlier, CS/CJ Series EtherNet/IP Unit CS1W-EIP21 V3.04 and earlier, and CS/CJ Series EtherNet/IP Unit CJ1W-EIP21 V3.04 and earlier.

Affected configurations

Nvd

Vulners

Node

omroncj2m-cpu35Match-

AND

omroncj2m-cpu35_firmwareRange≤2.18

Node

omroncj2m-cpu34Match-

AND

omroncj2m-cpu34_firmwareRange≤2.18

Node

omroncj2m-cpu33Match-

AND

omroncj2m-cpu33_firmwareRange≤2.18

Node

omroncj2m-cpu32Match-

AND

omroncj2m-cpu32_firmwareRange≤2.18

Node

omroncj2m-cpu31Match-

AND

omroncj2m-cpu31_firmwareRange≤2.18

Node

omroncj2h-cpu68-eipMatch-

AND

omroncj2h-cpu68-eip_firmwareRange≤3.04

Node

omroncj2h-cpu67-eipMatch-

AND

omroncj2h-cpu67-eip_firmwareRange≤3.04

Node

omroncj2h-cpu66-eipMatch-

AND

omroncj2h-cpu66-eip_firmwareRange≤3.04

Node

omroncj2h-cpu65-eip_firmwareRange≤3.04

AND

omroncj2h-cpu65-eipMatch-

Node

omroncj2h-cpu64-eip_firmwareRange≤3.04

AND

omroncj2h-cpu64-eipMatch-

Node

omroncs1w-eip21_firmwareRange≤3.04

AND

omroncs1w-eip21Match-

Node

omroncj1w-eip21_firmwareRange≤3.04

AND

omroncj1w-eip21Match-

VendorProductVersionCPE
omroncj2m-cpu35-cpe:2.3:h:omron:cj2m-cpu35:-:*:*:*:*:*:*:*
omroncj2m-cpu35_firmware*cpe:2.3:o:omron:cj2m-cpu35_firmware:*:*:*:*:*:*:*:*
omroncj2m-cpu34-cpe:2.3:h:omron:cj2m-cpu34:-:*:*:*:*:*:*:*
omroncj2m-cpu34_firmware*cpe:2.3:o:omron:cj2m-cpu34_firmware:*:*:*:*:*:*:*:*
omroncj2m-cpu33-cpe:2.3:h:omron:cj2m-cpu33:-:*:*:*:*:*:*:*
omroncj2m-cpu33_firmware*cpe:2.3:o:omron:cj2m-cpu33_firmware:*:*:*:*:*:*:*:*
omroncj2m-cpu32-cpe:2.3:h:omron:cj2m-cpu32:-:*:*:*:*:*:*:*
omroncj2m-cpu32_firmware*cpe:2.3:o:omron:cj2m-cpu32_firmware:*:*:*:*:*:*:*:*
omroncj2m-cpu31-cpe:2.3:h:omron:cj2m-cpu31:-:*:*:*:*:*:*:*
omroncj2m-cpu31_firmware*cpe:2.3:o:omron:cj2m-cpu31_firmware:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
omron	cj2m-cpu35	-	cpe:2.3:h:omron:cj2m-cpu35:-:::::::*
omron	cj2m-cpu35_firmware	*	cpe:2.3:o:omron:cj2m-cpu35_firmware::::::::
omron	cj2m-cpu34	-	cpe:2.3:h:omron:cj2m-cpu34:-:::::::*
omron	cj2m-cpu34_firmware	*	cpe:2.3:o:omron:cj2m-cpu34_firmware::::::::
omron	cj2m-cpu33	-	cpe:2.3:h:omron:cj2m-cpu33:-:::::::*
omron	cj2m-cpu33_firmware	*	cpe:2.3:o:omron:cj2m-cpu33_firmware::::::::
omron	cj2m-cpu32	-	cpe:2.3:h:omron:cj2m-cpu32:-:::::::*
omron	cj2m-cpu32_firmware	*	cpe:2.3:o:omron:cj2m-cpu32_firmware::::::::
omron	cj2m-cpu31	-	cpe:2.3:h:omron:cj2m-cpu31:-:::::::*
omron	cj2m-cpu31_firmware	*	cpe:2.3:o:omron:cj2m-cpu31_firmware::::::::

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1-10 of 241

CNA Affected

[
  {
    "vendor": "OMRON Corporation",
    "product": "CJ2M CPU Unit",
    "versions": [
      {
        "version": "CJ2M-CPU3[] Unit version of the built-in EtherNet/IP section Ver. 2.18 and earlier",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "OMRON Corporation",
    "product": "CJ2H CPU Unit",
    "versions": [
      {
        "version": "CJ2H-CPU6[]-EIP Unit version of the built-in EtherNet/IP section Ver. 3.04 and earlier",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "OMRON Corporation",
    "product": "CS/CJ Series EtherNet/IP Unit",
    "versions": [
      {
        "version": "CS1W-EIP21 V3.04 and earlier",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "OMRON Corporation",
    "product": "CS/CJ Series EtherNet/IP Unit",
    "versions": [
      {
        "version": "CJ1W-EIP21 V3.04 and earlier",
        "status": "affected"
      }
    ]
  }
]

References

jvn.jp/en/vu/JVNVU92193064/

www.ia.omron.com/product/vulnerability/OMSR-2023-006_en.pdf

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.002

Percentile

55.0%

JSON

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