{
  "id": "CVE-2020-25613",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-10-06T13:15:13.823",
  "lastModified": "2024-01-24T05:15:08.827",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en Ruby versiones hasta 2.5.8, versiones 2.6.x hasta 2.6.6 y versiones 2.7.x hasta 2.7.1. WEBrick, un simple servidor HTTP integrado con Ruby, no hab\u00eda comprobado rigurosamente el valor del encabezado transfer-encoding. Un atacante puede explotar potencialmente este problema para omitir un proxy inverso (que tambi\u00e9n presenta una comprobaci\u00f3n de encabezado deficiente), que puede conllevar a un ataque de Trafico Inapropiado de Peticiones HTTP"
    }
  ],
  "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:N/I:H/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "2.5.8",
              "matchCriteriaId": "D2D8FEE5-99D0-413E-8482-0479BBC81443"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.0",
              "versionEndIncluding": "2.6.6",
              "matchCriteriaId": "D79041FB-E10A-4907-805C-45FA8428FF29"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.7.0",
              "versionEndIncluding": "2.7.1",
              "matchCriteriaId": "3908BC67-A30E-4F56-9836-81FBB0754110"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ruby-lang:webrick:*:*:*:*:*:ruby:*:*",
              "versionEndIncluding": "1.6.0",
              "matchCriteriaId": "5A33AE4F-9A47-4D28-8BBC-9DF4CCDA8915"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
              "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
              "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://hackerone.com/reports/965267",
      "source": "cve@mitre.org",
      "tags": [
        "Permissions Required",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/202401-27",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20210115-0008/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}