gsd-2021-38634
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Microsoft Windows Update Client Elevation of Privilege Vulnerability
Aliases
Aliases
CVE-2021-38634


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-38634",
    "description": "Microsoft Windows Update Client Elevation of Privilege Vulnerability",
    "id": "GSD-2021-38634"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-38634"
      ],
      "details": "Microsoft Windows Update Client Elevation of Privilege Vulnerability",
      "id": "GSD-2021-38634",
      "modified": "2023-12-13T01:23:17.471835Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secure@microsoft.com",
        "ID": "CVE-2021-38634",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Windows 10 Version 1809",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.17763.2183"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server 2019",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.17763.2183"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server 2019 (Server Core installation)",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.17763.2183"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows 10 Version 1909",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.18363.1801"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows 10 Version 21H1",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.19043.1237"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server 2022",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.20348.230"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows 10 Version 2004",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.19041.1237"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server version 2004",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.19041.1237"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows 10 Version 20H2",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.19042.1237"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server version 20H2",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.19042.1237"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows 10 Version 1507",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.10240.19060"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows 10 Version 1607",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.14393.4651"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server 2016",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.14393.4651"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "Windows Server 2016 (Server Core installation)",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "10.0.0",
                          "version_value": "10.0.14393.4651"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Microsoft"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Microsoft Windows Update Client Elevation of Privilege Vulnerability"
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Elevation of Privilege"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38634",
            "refsource": "MISC",
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38634"
          },
          {
            "name": "https://www.zerodayinitiative.com/advisories/ZDI-21-1075/",
            "refsource": "MISC",
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1075/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "21540673-614A-4D40-8BD7-3F07723803B0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9E2C378B-1507-4C81-82F6-9F599616845A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FAE4278F-71A7-43E9-8F79-1CBFAE71D730",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6B8F3DD2-A145-4AF1-8545-CC42892DA3D1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E9273B95-20ED-4547-B0A8-95AD15B30372",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AAE74AF3-C559-4645-A6C0-25C3D647AAC8",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4A190388-AA82-4504-9D5A-624F23268C9F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0B60D940-80C7-49F0-8F4E-3F99AC15FA82",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "821614DD-37DD-44E2-A8A4-FE8D23A33C3C",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "Microsoft Windows Update Client Elevation of Privilege Vulnerability"
          },
          {
            "lang": "es",
            "value": "Una Vulnerabilidad de Elevaci\u00f3n de Privilegios en Microsoft Windows Update Client"
          }
        ],
        "id": "CVE-2021-38634",
        "lastModified": "2023-12-28T20:15:59.970",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.2,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.2,
              "source": "secure@microsoft.com",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Secondary"
            }
          ]
        },
        "published": "2021-09-15T12:15:14.547",
        "references": [
          {
            "source": "secure@microsoft.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38634"
          },
          {
            "source": "secure@microsoft.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1075/"
          }
        ],
        "sourceIdentifier": "secure@microsoft.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-269"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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