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CVE-2021-42357

Estado: ModificadaMedia (6.1)—

When using Apache Knox SSO prior to 1.6.1, a request could be crafted to redirect a user to a malicious page due to improper URL parsing. A request that included a specially crafted request parameter could be used to redirect the user to a page controlled by an attacker. This URL would need to be presented to the user outside the normal request flow through a XSS or phishing campaign.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Apache — Knox

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-42357",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Knox",
          "versions": [
            {
              "status": "affected",
              "version": "Apache Knox 1.x",
              "lessThan": "1.6.1",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "0.12.0",
              "lessThan": "Apache Knox 0.x*",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-01-17T20:15:07.697",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2022/01/17/2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://lists.apache.org/thread/b7v5dkpyqb51nw0lvz4cybhgrfhk1g7j",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2022/01/17/2",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.apache.org/thread/b7v5dkpyqb51nw0lvz4cybhgrfhk1g7j",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "When using Apache Knox SSO prior to 1.6.1, a request could be crafted to redirect a user to a malicious page due to improper URL parsing. A request that included a specially crafted request parameter could be used to redirect the user to a page controlled by an attacker. This URL would need to be presented to the user outside the normal request flow through a XSS or phishing campaign."
    },
    {
      "lang": "es",
      "value": "Cuando era usado Apache Knox SSO versiones anteriores a 1.6.1, una petición podía ser diseñada para redirigir a un usuario a una página maliciosa debido a un análisis incorrecto de la URL. Una petición que incluyera un parámetro de petición especialmente diseñado podría ser usada para redirigir al usuario a una página controlada por un atacante. Esta URL tendría que ser presentada al usuario fuera del flujo normal de peticiones mediante una campaña de tipo XSS o phishing"
    }
  ],
  "lastModified": "2026-06-17T04:09:40.963",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:knox:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D1DE53D2-9049-4622-BB80-9640BB120575",
              "versionEndExcluding": "1.6.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}