Search

Find a vulnerability

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.

    1 vulnerability by ZUKEN Elmic

    CVE-2022-43501 (GCVE-0-2022-43501)

    Vulnerability from cvelistv5 – Published: 2023-02-10 00:00 – Updated: 2025-03-24 18:11
    VLAI
    Summary
    KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the current or future TCP connections and either hijack existing ones or spoof future ones.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-330 - Use of Insufficiently Random Values
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T13:32:59.196Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.elwsc.co.jp/news/6352"
          },
          {
            "name": "Zuken Elmic KASAGO uses insufficient random values for TCP Initial Sequence Numbers",
            "tags": [
              "third-party-advisory",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/vu/JVNVU99551468/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.1,
              "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:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-43501",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-24T18:11:00.523781Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-24T18:11:03.974Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kasago IPv6/v4 Dual",
          "vendor": "ZUKEN Elmic",
          "versions": [
            {
              "status": "affected",
              "version": "prior to Ver6.0.1.34"
            }
          ]
        },
        {
          "product": "Kasago IPv4",
          "vendor": "ZUKEN Elmic",
          "versions": [
            {
              "status": "affected",
              "version": "prior to Ver6.0.1.34"
            }
          ]
        },
        {
          "product": "Kasago IPv4 Light",
          "vendor": "ZUKEN Elmic",
          "versions": [
            {
              "status": "affected",
              "version": "prior to Ver6.0.1.34"
            }
          ]
        },
        {
          "product": "Kasago mobile IPv6",
          "vendor": "ZUKEN Elmic",
          "versions": [
            {
              "status": "affected",
              "version": "prior to Ver6.0.1.34"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the current or future TCP connections and either hijack existing ones or spoof future ones."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-330",
              "description": "CWE-330: Use of Insufficiently Random Values",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-02-10T00:00:00.000Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://www.elwsc.co.jp/news/6352"
        },
        {
          "name": "Zuken Elmic KASAGO uses insufficient random values for TCP Initial Sequence Numbers",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://jvn.jp/en/vu/JVNVU99551468/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2022-43501",
    "datePublished": "2023-02-10T00:00:00.000Z",
    "dateReserved": "2022-12-09T00:00:00.000Z",
    "dateUpdated": "2025-03-24T18:11:03.974Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}