CVE-2022-45794 (GCVE-0-2022-45794)

Vulnerability from cvelistv5 – Published: 2024-01-10 22:56 – Updated: 2025-05-22 15:46
VLAI
Title
Omron CJ-series and CS-series unauthenticated filesystem access.
Summary
An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.
Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-24 18:20 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Credits
Reid Wightman of Dragos, Inc.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T14:17:04.073Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-45794",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-24T18:20:27.535175Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-22T15:46:32.685Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "CJ-series and CS-series CPU modules",
          "vendor": "Omron",
          "versions": [
            {
              "status": "affected",
              "version": "0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "Reid Wightman of Dragos, Inc."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.\u003cbr\u003e"
            }
          ],
          "value": "An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.\n"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-165",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-165 File Manipulation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306 Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-22T16:39:10.643Z",
        "orgId": "12bdf821-1545-4a87-aac5-61670cc6fcef",
        "shortName": "Dragos"
      },
      "references": [
        {
          "url": "https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf"
        },
        {
          "url": "https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Omron CJ-series and CS-series unauthenticated filesystem access.",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "12bdf821-1545-4a87-aac5-61670cc6fcef",
    "assignerShortName": "Dragos",
    "cveId": "CVE-2022-45794",
    "datePublished": "2024-01-10T22:56:58.836Z",
    "dateReserved": "2022-11-22T17:52:43.199Z",
    "dateUpdated": "2025-05-22T15:46:32.685Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-45794",
      "date": "2026-10-03",
      "epss": "0.00536",
      "percentile": "0.43188"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-03T14:17:04.073Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2022-45794",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-01-24T18:20:27.535175Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-05-22T15:46:27.594Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "affected",
              "product": "CJ-series and CS-series CPU modules",
              "vendor": "Omron",
              "versions": [
                {
                  "status": "affected",
                  "version": "0"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "user": "00000000-0000-4000-9000-000000000000",
              "value": "Reid Wightman of Dragos, Inc."
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.\u003cbr\u003e"
                }
              ],
              "value": "An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.\n"
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-165",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-165 File Manipulation"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 8.6,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-306",
                  "description": "CWE-306 Missing Authentication for Critical Function",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-01-22T16:39:10.643Z",
            "orgId": "12bdf821-1545-4a87-aac5-61670cc6fcef",
            "shortName": "Dragos"
          },
          "references": [
            {
              "url": "https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf"
            },
            {
              "url": "https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Omron CJ-series and CS-series unauthenticated filesystem access.",
          "x_generator": {
            "engine": "Vulnogram 0.1.0-dev"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "12bdf821-1545-4a87-aac5-61670cc6fcef",
        "assignerShortName": "Dragos",
        "cveId": "CVE-2022-45794",
        "datePublished": "2024-01-10T22:56:58.836Z",
        "dateReserved": "2022-11-22T17:52:43.199Z",
        "dateUpdated": "2025-05-22T15:46:32.685Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.