{
  "id": "CVE-2020-12821",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-07-07T20:15:10.027",
  "lastModified": "2020-07-15T13:59:35.643",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Gossipsub 1.0 does not properly resist invalid message spam, such as an eclipse attack or a sybil attack."
    },
    {
      "lang": "es",
      "value": "Gossipsub versi\u00f3n 1.0, no resiste apropiadamente el correo no deseado de mensajes no v\u00e1lidos, tal y como un ataque tipo eclipse o un ataque tipo sybil"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:protocol:gossipsub:1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "F9117059-A555-4F2A-9D6B-36A5DCC04A5C"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bitcoin.stackexchange.com/questions/61151/eclipse-attack-vs-sybil-attack",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://gateway.ipfs.io/ipfs/QmPWuNBs8h6a8KamRvGqhTq5UDYJRQsEEy37zDKjujQQQm/Gossipsub%20Evaluation%20Report.pdf",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/ipfs/blog/pull/450",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/libp2p/specs/tree/master/pubsub/gossipsub",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}