CVE-2023-5347 (GCVE-0-2023-5347)

Vulnerability from cvelistv5 – Published: 2024-01-09 09:54 – Updated: 2025-10-08 09:10
VLAI?
Title
Unauthenticated Firmware Upgrade
Summary
An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables. This issue affects JetNet devices older than firmware version 2024/01.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Impacted products
Vendor Product Version
Korenix JetNet Series Affected: firmware older than 2024/01
Create a notification for this product.
Credits
S. Dietz (CyberDanube)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T07:52:08.584Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.beijerelectronics.com/en/support/Help___online?docId=69947"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2024/Jan/11"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-5347",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-08T15:33:17.516940Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-03T14:33:02.608Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "affected",
          "product": "JetNet Series",
          "vendor": "Korenix",
          "versions": [
            {
              "status": "affected",
              "version": "firmware older than 2024/01"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "user": "00000000-0000-4000-9000-000000000000",
          "value": "S. Dietz (CyberDanube)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables.\u0026nbsp;\u003cspan style=\"background-color: var(--wht);\"\u003eThis issue affects JetNet devices older than firmware version 2024/01.\u003c/span\u003e"
            }
          ],
          "value": "An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables.\u00a0This issue affects JetNet devices older than firmware version 2024/01."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-558",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-558 Replace Trusted Executable"
            }
          ]
        },
        {
          "capecId": "CAPEC-552",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-552 Install Rootkit"
            }
          ]
        },
        {
          "capecId": "CAPEC-642",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-642 Replace Binaries"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347 Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-327",
              "description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-08T09:10:00.840Z",
        "orgId": "7d092a75-6bbd-48c6-a15a-0297458009bc",
        "shortName": "CyberDanube"
      },
      "references": [
        {
          "url": "https://www.beijerelectronics.com/en/support/Help___online?docId=69947"
        },
        {
          "url": "https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/"
        },
        {
          "url": "http://seclists.org/fulldisclosure/2024/Jan/11"
        },
        {
          "url": "http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Unauthenticated Firmware Upgrade",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "See:\u0026nbsp;\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.beijerelectronics.com/en/support/Help___online?docId=69947\"\u003ehttps://www.beijerelectronics.com/en/support/Help___online?docId=69947\u003c/a\u003e"
            }
          ],
          "value": "See:\u00a0 https://www.beijerelectronics.com/en/support/Help___online?docId=69947"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d092a75-6bbd-48c6-a15a-0297458009bc",
    "assignerShortName": "CyberDanube",
    "cveId": "CVE-2023-5347",
    "datePublished": "2024-01-09T09:54:59.664Z",
    "dateReserved": "2023-10-03T08:11:00.343Z",
    "dateUpdated": "2025-10-08T09:10:00.840Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.beijerelectronics.com/en/support/Help___online?docId=69947\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2024/Jan/11\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T07:52:08.584Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-5347\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-08T15:33:17.516940Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-08T15:33:19.190Z\"}}], \"cna\": {\"title\": \"Unauthenticated Firmware Upgrade\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"user\": \"00000000-0000-4000-9000-000000000000\", \"value\": \"S. Dietz (CyberDanube)\"}], \"impacts\": [{\"capecId\": \"CAPEC-558\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-558 Replace Trusted Executable\"}]}, {\"capecId\": \"CAPEC-552\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-552 Install Rootkit\"}]}, {\"capecId\": \"CAPEC-642\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-642 Replace Binaries\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Korenix\", \"product\": \"JetNet Series\", \"versions\": [{\"status\": \"affected\", \"version\": \"firmware older than 2024/01\"}], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://www.beijerelectronics.com/en/support/Help___online?docId=69947\"}, {\"url\": \"https://cyberdanube.com/en/en-multiple-vulnerabilities-in-korenix-jetnet-series/\"}, {\"url\": \"http://seclists.org/fulldisclosure/2024/Jan/11\"}, {\"url\": \"http://packetstormsecurity.com/files/176550/Korenix-JetNet-Series-Unauthenticated-Access.html\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"See:\\u00a0 https://www.beijerelectronics.com/en/support/Help___online?docId=69947\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"See:\u0026nbsp;\u003ca target=\\\"_blank\\\" rel=\\\"nofollow\\\" href=\\\"https://www.beijerelectronics.com/en/support/Help___online?docId=69947\\\"\u003ehttps://www.beijerelectronics.com/en/support/Help___online?docId=69947\u003c/a\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables.\\u00a0This issue affects JetNet devices older than firmware version 2024/01.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"An Improper Verification of Cryptographic Signature vulnerability in the update process of Korenix JetNet Series allows replacing the whole operating system including Trusted Executables.\u0026nbsp;\u003cspan style=\\\"background-color: var(--wht);\\\"\u003eThis issue affects JetNet devices older than firmware version 2024/01.\u003c/span\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-347\", \"description\": \"CWE-347 Improper Verification of Cryptographic Signature\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-327\", \"description\": \"CWE-327 Use of a Broken or Risky Cryptographic Algorithm\"}]}], \"providerMetadata\": {\"orgId\": \"7d092a75-6bbd-48c6-a15a-0297458009bc\", \"shortName\": \"CyberDanube\", \"dateUpdated\": \"2025-10-08T09:10:00.840Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-5347\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-08T09:10:00.840Z\", \"dateReserved\": \"2023-10-03T08:11:00.343Z\", \"assignerOrgId\": \"7d092a75-6bbd-48c6-a15a-0297458009bc\", \"datePublished\": \"2024-01-09T09:54:59.664Z\", \"assignerShortName\": \"CyberDanube\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.