Vulnerability-Lookup

JVNDB-2023-002787

Vulnerability from jvndb - Published: 2023-08-03 04:45 - Updated:2023-08-03 04:45

Severity

7.5 (High) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

OMRON CJ series and CS/CJ Series EtherNet/IT unit vulnerable to Denial-of-Service (DoS)

Details

Denial-of-service (DoS) vulnerability due to improper validation of specified type of input (CWE-1287) 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 provided by OMRON Corporation. OMRON Corporation reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.

References

Type

URL

	JVN	http://jvn.jp/en/vu/JVNVU92193064/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2023-38744
	NVD	https://nvd.nist.gov/vuln/detail/CVE-2023-38744
	Improper Validation of Specified Type of Input(CWE-1287)	https://cwe.mitre.org/data/definitions/1287.html

Impacted products

Vendor

Product

	OMRON Corporation	CJ2H-CPU6[]-EIP
	OMRON Corporation	CJ2M-CPU3[]
	OMRON Corporation	CJ1W-EIP21
	OMRON Corporation	CS1W-EIP21

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2023/JVNDB-2023-002787.html",
  "dc:date": "2023-08-03T13:45+09:00",
  "dcterms:issued": "2023-08-03T13:45+09:00",
  "dcterms:modified": "2023-08-03T13:45+09:00",
  "description": "Denial-of-service (DoS) vulnerability due to improper validation of specified type of input (CWE-1287) 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 provided by OMRON Corporation.\r\n\r\nOMRON Corporation reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.",
  "link": "https://jvndb.jvn.jp/en/contents/2023/JVNDB-2023-002787.html",
  "sec:cpe": [
    {
      "#text": "cpe:/a:omron:cj2h_cpu6",
      "@product": "CJ2H-CPU6[]-EIP",
      "@vendor": "OMRON Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/a:omron:cj2m_cpu3",
      "@product": "CJ2M-CPU3[]",
      "@vendor": "OMRON Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:omron:cj1w-eip21_firmware",
      "@product": "CJ1W-EIP21",
      "@vendor": "OMRON Corporation",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/o:omron:cs1w-eip21_firmware",
      "@product": "CS1W-EIP21",
      "@vendor": "OMRON Corporation",
      "@version": "2.2"
    }
  ],
  "sec:cvss": {
    "@score": "7.5",
    "@severity": "High",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2023-002787",
  "sec:references": [
    {
      "#text": "http://jvn.jp/en/vu/JVNVU92193064/index.html",
      "@id": "JVNVU#92193064",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2023-38744",
      "@id": "CVE-2023-38744",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2023-38744",
      "@id": "CVE-2023-38744",
      "@source": "NVD"
    },
    {
      "#text": "https://cwe.mitre.org/data/definitions/1287.html",
      "@id": "CWE-1287",
      "@title": "Improper Validation of Specified Type of Input(CWE-1287)"
    }
  ],
  "title": "OMRON CJ series and CS/CJ Series EtherNet/IT unit vulnerable to Denial-of-Service (DoS)"
}

CVE-2023-38744 (GCVE-0-2023-38744)

Vulnerability from cvelistv5 – Published: 2023-08-03 04:55 – Updated: 2024-10-17 15:17

Summary

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.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-17 15:04 UTC

CWE

Denial-of-service (DoS)
CWE-1284 - Improper Validation of Specified Quantity in Input

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.ia.omron.com/product/vulnerability/OM…
https://jvn.jp/en/vu/JVNVU92193064/

Impacted products

7 products

Vendor	Product	Version
OMRON Corporation	CJ2M CPU Unit	Affected: CJ2M-CPU3[] Unit version of the built-in EtherNet/IP section Ver. 2.18 and earlier
OMRON Corporation	CJ2H CPU Unit	Affected: CJ2H-CPU6[]-EIP Unit version of the built-in EtherNet/IP section Ver. 3.04 and earlier
OMRON Corporation	CS/CJ Series EtherNet/IP Unit	Affected: CS1W-EIP21 V3.04 and earlier
OMRON Corporation	CS/CJ Series EtherNet/IP Unit	Affected: CJ1W-EIP21 V3.04 and earlier
omron	cj2m_cpu_unit	Affected: 0 , < 2.18 (custom) cpe:2.3:h:omron:cj2m_cpu_unit::::::::
omron	cj2h_cpu_unit	Affected: 0 , < 3.04 (custom) cpe:2.3:h:omron:cj2h_cpu_unit::::::::
omron	cs_cj_series_ethernet_ip_unit	Affected: 0 , < CS1W-EIP21 V3.04 (custom) Affected: 0 , < CJ1W-EIP21 V3.04 (custom) cpe:2.3:h:omron:cs_cj_series_ethernet_ip_unit::::::::

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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