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CVE-2021-21478

Estado: ModificadaMedia (6.1)—

SAP Web Dynpro ABAP allow an attacker to redirect users to a malicious site due to Reverse Tabnabbing vulnerabilities.

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)

SAP — WEB Dynpro Abap

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21478",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "cna@sap.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 4.7,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ],
    "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": "cna@sap.com",
      "affectedData": [
        {
          "vendor": "SAP SE",
          "product": "SAP NetWeaver AS ABAP (Web Dynpro ABAP)",
          "versions": [
            {
              "status": "affected",
              "version": "< SAP_UI 750"
            },
            {
              "status": "affected",
              "version": "< 752"
            },
            {
              "status": "affected",
              "version": "< 753"
            },
            {
              "status": "affected",
              "version": "< 754"
            },
            {
              "status": "affected",
              "version": "< 755"
            },
            {
              "status": "affected",
              "version": "< and SAP_BASIS 700"
            },
            {
              "status": "affected",
              "version": "< 701"
            },
            {
              "status": "affected",
              "version": "< 702"
            },
            {
              "status": "affected",
              "version": "< 731"
            },
            {
              "status": "affected",
              "version": "< 804"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-09T21:15:13.783",
  "references": [
    {
      "url": "https://launchpad.support.sap.com/#/notes/2974582",
      "tags": [
        "Permissions Required"
      ],
      "source": "cna@sap.com"
    },
    {
      "url": "https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cna@sap.com"
    },
    {
      "url": "https://launchpad.support.sap.com/#/notes/2974582",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SAP Web Dynpro ABAP allow an attacker to redirect users to a malicious site due to Reverse Tabnabbing vulnerabilities."
    },
    {
      "lang": "es",
      "value": "SAP Web Dynpro ABAP, permite a un atacante redireccionar a usuarios a un sitio malicioso debido a vulnerabilidades de tipo Tabnabbing Inverso"
    }
  ],
  "lastModified": "2026-06-17T03:35:39.067",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sap:web_dynpro_abap:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2B331F3E-5D5C-4714-B03F-D56C03E1F7B2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@sap.com"
}