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CVE-2021-21481

Estado: ModificadaAlta (8.8)—

The MigrationService, which is part of SAP NetWeaver versions 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not perform an authorization check. This might allow an unauthorized attacker to access configuration objects, including such that grant administrative privileges. This could result in complete compromise of system confidentiality, integrity, and availability.

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 — Netweaver

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21481",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 8.3,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "cna@sap.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 9.6,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cna@sap.com",
      "affectedData": [
        {
          "vendor": "SAP SE",
          "product": "SAP NetWeaver AS JAVA (MigrationService)",
          "versions": [
            {
              "status": "affected",
              "version": "< 7.10"
            },
            {
              "status": "affected",
              "version": "< 7.11"
            },
            {
              "status": "affected",
              "version": "< 7.30"
            },
            {
              "status": "affected",
              "version": "< 7.31"
            },
            {
              "status": "affected",
              "version": "< 7.40"
            },
            {
              "status": "affected",
              "version": "< 7.50"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-03-09T15:15:14.787",
  "references": [
    {
      "url": "https://launchpad.support.sap.com/#/notes/3022422",
      "tags": [
        "Permissions Required",
        "Vendor Advisory"
      ],
      "source": "cna@sap.com"
    },
    {
      "url": "https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=571343107",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cna@sap.com"
    },
    {
      "url": "https://launchpad.support.sap.com/#/notes/3022422",
      "tags": [
        "Permissions Required",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=571343107",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The MigrationService, which is part of SAP NetWeaver versions 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, does not perform an authorization check. This might allow an unauthorized attacker to access configuration objects, including such that grant administrative privileges. This could result in complete compromise of system confidentiality, integrity, and availability."
    },
    {
      "lang": "es",
      "value": "MigrationService, que forma parte de SAP NetWeaver versiones 7.10, 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, no lleva a cabo una comprobación de autorización.&#xa0;Esto podría permitir a un atacante no autorizado acceder a los objetos de configuración, incluyendo los que otorgan privilegios administrativos.&#xa0;Esto podría resultar en un compromiso total de la confidencialidad, integridad y disponibilidad del sistema"
    }
  ],
  "lastModified": "2026-06-17T03:35:39.477",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:sap:netweaver:7.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EDFFDB95-B956-4B22-81F4-A4074D49D4A8"
            },
            {
              "criteria": "cpe:2.3:a:sap:netweaver:7.11:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "21A3F6A8-B060-48CE-841F-698F8F779191"
            },
            {
              "criteria": "cpe:2.3:a:sap:netweaver:7.20:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "53B11A3B-C559-428C-8946-7FD9FFBFA1BC"
            },
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              "vulnerable": true,
              "matchCriteriaId": "606EFE4F-57A4-44E2-A98D-F0867A658218"
            },
            {
              "criteria": "cpe:2.3:a:sap:netweaver:7.31:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FECD5E96-7669-4747-80D2-27F95BF420BC"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "F019F7F5-7740-4BD4-850F-D7A1923C6200"
            },
            {
              "criteria": "cpe:2.3:a:sap:netweaver:7.50:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F2B37045-2FB7-49BB-AE38-B84FAA6ADFB0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@sap.com"
}