FKIE_CVE-2020-15234

Vulnerability from fkie_nvd - Published: 2020-10-02 21:15 - Updated: 2024-11-21 05:05
Severity ?
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Summary
ORY Fosite is a security first OAuth2 & OpenID Connect framework for Go. In Fosite before version 0.34.1, the OAuth 2.0 Client's registered redirect URLs and the redirect URL provided at the OAuth2 Authorization Endpoint where compared using strings.ToLower while they should have been compared with a simple string match. This allows an attacker to register a client with allowed redirect URL https://example.com/callback. Then perform an OAuth2 flow and requesting redirect URL https://example.com/CALLBACK. Instead of an error (invalid redirect URL), the browser is redirected to https://example.com/CALLBACK with a potentially successful OAuth2 response, depending on the state of the overall OAuth2 flow (the user might still deny the request for example). This vulnerability has been patched in ORY Fosite v0.34.1.
References
security-advisories@github.comhttps://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bfPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bfPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6Third Party Advisory
Impacted products
Vendor Product Version
ory fosite *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ory:fosite:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "93BF64E6-5CA3-4E91-A6B3-DBD8B6AE6B73",
              "versionEndExcluding": "0.34.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ORY Fosite is a security first OAuth2 \u0026 OpenID Connect framework for Go. In Fosite before version 0.34.1, the OAuth 2.0 Client\u0027s registered redirect URLs and the redirect URL provided at the OAuth2 Authorization Endpoint where compared using strings.ToLower while they should have been compared with a simple string match. This allows an attacker to register a client with allowed redirect URL https://example.com/callback. Then perform an OAuth2 flow and requesting redirect URL https://example.com/CALLBACK. Instead of an error (invalid redirect URL), the browser is redirected to https://example.com/CALLBACK with a potentially successful OAuth2 response, depending on the state of the overall OAuth2 flow (the user might still deny the request for example). This vulnerability has been patched in ORY Fosite v0.34.1."
    },
    {
      "lang": "es",
      "value": "ORY Fosite es el primer framework de seguridad OAuth2 y OpenID Connect para Go.\u0026#xa0;En Fosite versiones anteriores a 0.34.1, las URL de redireccionamiento registradas del cliente OAuth versi\u00f3n 2.0 y la URL de redireccionamiento proporcionada en el OAuth2 Authorization Endpoint se compararon usando strings.ToLower, aunque deber\u00edan haberse comparado con una coincidencia de cadena simple.\u0026#xa0;Esto permite a un atacante registrar un cliente con la URL de redireccionamiento permitida https://example.com/callback.\u0026#xa0;Luego, llevar a cabo un flujo de OAuth2 y solicitando la URL de redireccionamiento https://example.com/CALLBACK.\u0026#xa0;En lugar de un error (una URL de redireccionamiento no v\u00e1lida), el navegador es redireccionado a https://example.com/CALLBACK con una respuesta OAuth2 potencialmente exitosa, dependiendo del estado del flujo OAuth2 general (el usuario a\u00fan puede denegar la petici\u00f3n, por ejemplo ).\u0026#xa0;Esta vulnerabilidad ha sido parcheada en ORY Fosite versi\u00f3n v0.34.1"
    }
  ],
  "id": "CVE-2020-15234",
  "lastModified": "2024-11-21T05:05:09.190",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.9,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.9,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.7,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-10-02T21:15:12.513",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bf"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/ory/fosite/commit/cdee51ebe721bfc8acca0fd0b86b030ca70867bf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/ory/fosite/security/advisories/GHSA-grfp-q2mm-hfp6"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-178"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.