FKIE_CVE-2022-43501

Vulnerability from fkie_nvd - Published: 2023-02-10 04:15 - Updated: 2025-03-24 18:15
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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.
References
vultures@jpcert.or.jphttps://jvn.jp/en/vu/JVNVU99551468/Third Party Advisory
vultures@jpcert.or.jphttps://www.elwsc.co.jp/news/6352Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jvn.jp/en/vu/JVNVU99551468/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.elwsc.co.jp/news/6352Vendor Advisory
Impacted products
Vendor Product Version
elwsc kasago_ipv4 *
elwsc kasago_ipv4_light *
elwsc kasago_ipv6\/v4_dual *
elwsc kasago_mobile_ipv6 *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:elwsc:kasago_ipv4:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E438EA09-9BEF-4152-B95A-B3E0DF1EE807",
              "versionEndExcluding": "6.0.1.34",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:elwsc:kasago_ipv4_light:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "65A36EBB-9FB9-402B-8105-E98C180EC7D2",
              "versionEndExcluding": "6.0.1.34",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:elwsc:kasago_ipv6\\/v4_dual:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "00163C20-1C59-4E42-A17F-8B7EC88ADAEE",
              "versionEndExcluding": "6.0.1.34",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:elwsc:kasago_mobile_ipv6:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7FF16ECE-88FD-4350-88CF-4634D802C30D",
              "versionEndExcluding": "6.0.1.34",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "La pila KASAGO TCP/IP proporcionada por Zuken Elmic genera ISN (n\u00famero de secuencia inicial) para conexiones TCP desde una fuente insuficientemente aleatoria. Un atacante puede determinar el ISN de las conexiones TCP actuales o futuras y secuestrar las existentes o falsificar las futuras."
    }
  ],
  "id": "CVE-2022-43501",
  "lastModified": "2025-03-24T18:15:14.587",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.2,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2023-02-10T04:15:11.107",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/vu/JVNVU99551468/"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.elwsc.co.jp/news/6352"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/vu/JVNVU99551468/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.elwsc.co.jp/news/6352"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-330"
        }
      ],
      "source": "vultures@jpcert.or.jp",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-330"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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