{
  "id": "CVE-2020-8162",
  "sourceIdentifier": "support@hackerone.com",
  "published": "2020-06-19T17:15:18.583",
  "lastModified": "2022-05-24T16:15:39.237",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user bypassing upload limits."
    },
    {
      "lang": "es",
      "value": "Se presenta una aplicaci\u00f3n del lado del cliente de una vulnerabilidad de seguridad del lado del servidor en rails versiones anteriores a 5.2.4.2 y rails versiones anteriores a 6.0.3.1 El adaptador S3 de ActiveStorage que permite a un usuario final modificar el Content-Length de una carga directa de archivos sin pasar por los l\u00edmites de carga"
    }
  ],
  "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-434"
        }
      ]
    },
    {
      "source": "support@hackerone.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-602"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "5.2.4.2",
              "matchCriteriaId": "1FB41816-EA80-435F-AB30-076EE523E2A8"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.0.0",
              "versionEndExcluding": "6.0.3.1",
              "matchCriteriaId": "12B5617A-91AC-4B94-BE1A-057DBF322808"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://groups.google.com/g/rubyonrails-security/c/PjU3946mreQ",
      "source": "support@hackerone.com",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://hackerone.com/reports/789579",
      "source": "support@hackerone.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.debian.org/security/2020/dsa-4766",
      "source": "support@hackerone.com",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}