{
  "id": "CVE-2021-26296",
  "sourceIdentifier": "security@apache.org",
  "published": "2021-02-19T09:15:13.283",
  "lastModified": "2021-06-02T15:15:32.973",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the default configuration, Apache MyFaces Core versions 2.2.0 to 2.2.13, 2.3.0 to 2.3.7, 2.3-next-M1 to 2.3-next-M4, and 3.0.0-RC1 use cryptographically weak implicit and explicit cross-site request forgery (CSRF) tokens. Due to that limitation, it is possible (although difficult) for an attacker to calculate a future CSRF token value and to use that value to trick a user into executing unwanted actions on an application."
    },
    {
      "lang": "es",
      "value": "En la configuraci\u00f3n predeterminada, Apache MyFaces Core versiones 2.2.0 hasta 2.2.13, versiones 2.3.0 hasta 2.3.7, versiones 2.3-next-M1 hasta 2.3-next-M4 y 3.0.0-RC1, usan tokens de tipo cross-site request forgery (CSRF) impl\u00edcitos y expl\u00edcitos criptogr\u00e1ficamente d\u00e9biles. Debido a esa limitaci\u00f3n, es posible (aunque dif\u00edcil) para un atacante calcular un valor futuro de token CSRF y usar ese valor para enga\u00f1ar al usuario a ejecutar acciones no deseadas en una aplicaci\u00f3n"
    }
  ],
  "metrics": {
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "HIGH",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.1
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 4.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ]
    },
    {
      "source": "security@apache.org",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ]
    }
  ],
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  "references": [
    {
      "url": "http://packetstormsecurity.com/files/161484/Apache-MyFaces-2.x-Cross-Site-Request-Forgery.html",
      "source": "security@apache.org",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
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    },
    {
      "url": "http://seclists.org/fulldisclosure/2021/Feb/66",
      "source": "security@apache.org",
      "tags": [
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        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r2b73e2356c6155e9ec78fdd8f72a4fac12f3e588014f5f535106ed9b%40%3Cannounce.apache.org%3E",
      "source": "security@apache.org",
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}