gsd-2021-42321
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Microsoft Exchange Server Remote Code Execution Vulnerability
Aliases
Aliases
CVE-2021-42321


To clipboard 

{
   GSD: {
      alias: "CVE-2021-42321",
      description: "Microsoft Exchange Server Remote Code Execution Vulnerability",
      id: "GSD-2021-42321",
      references: [
         "https://packetstormsecurity.com/files/cve/CVE-2021-42321",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-42321",
         ],
         details: "Microsoft Exchange Server Remote Code Execution Vulnerability",
         id: "GSD-2021-42321",
         modified: "2023-12-13T01:23:06.556780Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cisa.gov": {
         cveID: "CVE-2021-42321",
         dateAdded: "2021-11-17",
         dueDate: "2021-12-01",
         product: "Exchange",
         requiredAction: "Apply updates per vendor instructions.",
         shortDescription: "An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.",
         vendorProject: "Microsoft",
         vulnerabilityName: "Microsoft Exchange Server Remote Code Execution Vulnerability",
      },
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secure@microsoft.com",
            ID: "CVE-2021-42321",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "Microsoft Exchange Server 2016 Cumulative Update 21",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.01.0",
                                       version_value: "15.01.2308.020",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2019 Cumulative Update 10",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.02.0",
                                       version_value: "15.02.0792.019",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2016 Cumulative Update 22",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.0.0",
                                       version_value: "15.01.2375.017",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2019 Cumulative Update 11",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.02.0",
                                       version_value: "15.02.0986.014",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "Microsoft",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "Microsoft Exchange Server Remote Code Execution Vulnerability",
               },
            ],
         },
         impact: {
            cvss: [
               {
                  baseScore: 8.8,
                  baseSeverity: "HIGH",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
                  version: "3.1",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "Remote Code Execution",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42321",
                  refsource: "MISC",
                  url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42321",
               },
               {
                  name: "http://packetstormsecurity.com/files/166153/Microsoft-Exchange-Server-Remote-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/166153/Microsoft-Exchange-Server-Remote-Code-Execution.html",
               },
               {
                  name: "http://packetstormsecurity.com/files/168131/Microsoft-Exchange-Server-ChainedSerializationBinder-Remote-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/168131/Microsoft-Exchange-Server-ChainedSerializationBinder-Remote-Code-Execution.html",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         cve: {
            cisaActionDue: "2021-12-01",
            cisaExploitAdd: "2021-11-17",
            cisaRequiredAction: "Apply updates per vendor instructions.",
            cisaVulnerabilityName: "Microsoft Exchange Server Remote Code Execution Vulnerability",
            configurations: [
               {
                  nodes: [
                     {
                        cpeMatch: [
                           {
                              criteria: "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:*",
                              matchCriteriaId: "3BE427A4-B0C2-4064-8234-29426325C348",
                              vulnerable: true,
                           },
                           {
                              criteria: "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*",
                              matchCriteriaId: "449CE85B-E599-44D3-A7C1-5133F6A55E86",
                              vulnerable: true,
                           },
                           {
                              criteria: "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:*",
                              matchCriteriaId: "B4185347-EEDD-4239-9AB3-410E2EC89D2A",
                              vulnerable: true,
                           },
                           {
                              criteria: "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*",
                              matchCriteriaId: "435343A4-BF10-461A-ABF2-D511A5FBDA75",
                              vulnerable: true,
                           },
                        ],
                        negate: false,
                        operator: "OR",
                     },
                  ],
               },
            ],
            descriptions: [
               {
                  lang: "en",
                  value: "Microsoft Exchange Server Remote Code Execution Vulnerability",
               },
               {
                  lang: "es",
                  value: "Una vulnerabilidad de Ejecución de Código Remota en Microsoft Exchange Server",
               },
            ],
            id: "CVE-2021-42321",
            lastModified: "2023-12-28T16:16:00.120",
            metrics: {
               cvssMetricV2: [
                  {
                     acInsufInfo: false,
                     baseSeverity: "MEDIUM",
                     cvssData: {
                        accessComplexity: "LOW",
                        accessVector: "NETWORK",
                        authentication: "SINGLE",
                        availabilityImpact: "PARTIAL",
                        baseScore: 6.5,
                        confidentialityImpact: "PARTIAL",
                        integrityImpact: "PARTIAL",
                        vectorString: "AV:N/AC:L/Au:S/C:P/I:P/A:P",
                        version: "2.0",
                     },
                     exploitabilityScore: 8,
                     impactScore: 6.4,
                     obtainAllPrivilege: false,
                     obtainOtherPrivilege: false,
                     obtainUserPrivilege: false,
                     source: "nvd@nist.gov",
                     type: "Primary",
                     userInteractionRequired: false,
                  },
               ],
               cvssMetricV31: [
                  {
                     cvssData: {
                        attackComplexity: "LOW",
                        attackVector: "NETWORK",
                        availabilityImpact: "HIGH",
                        baseScore: 8.8,
                        baseSeverity: "HIGH",
                        confidentialityImpact: "HIGH",
                        integrityImpact: "HIGH",
                        privilegesRequired: "LOW",
                        scope: "UNCHANGED",
                        userInteraction: "NONE",
                        vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        version: "3.1",
                     },
                     exploitabilityScore: 2.8,
                     impactScore: 5.9,
                     source: "secure@microsoft.com",
                     type: "Primary",
                  },
                  {
                     cvssData: {
                        attackComplexity: "LOW",
                        attackVector: "NETWORK",
                        availabilityImpact: "HIGH",
                        baseScore: 8.8,
                        baseSeverity: "HIGH",
                        confidentialityImpact: "HIGH",
                        integrityImpact: "HIGH",
                        privilegesRequired: "LOW",
                        scope: "UNCHANGED",
                        userInteraction: "NONE",
                        vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        version: "3.1",
                     },
                     exploitabilityScore: 2.8,
                     impactScore: 5.9,
                     source: "nvd@nist.gov",
                     type: "Secondary",
                  },
               ],
            },
            published: "2021-11-10T01:19:50.047",
            references: [
               {
                  source: "secure@microsoft.com",
                  tags: [
                     "Exploit",
                     "Third Party Advisory",
                     "VDB Entry",
                  ],
                  url: "http://packetstormsecurity.com/files/166153/Microsoft-Exchange-Server-Remote-Code-Execution.html",
               },
               {
                  source: "secure@microsoft.com",
                  tags: [
                     "Exploit",
                     "Third Party Advisory",
                     "VDB Entry",
                  ],
                  url: "http://packetstormsecurity.com/files/168131/Microsoft-Exchange-Server-ChainedSerializationBinder-Remote-Code-Execution.html",
               },
               {
                  source: "secure@microsoft.com",
                  tags: [
                     "Patch",
                     "Vendor Advisory",
                  ],
                  url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42321",
               },
            ],
            sourceIdentifier: "secure@microsoft.com",
            vulnStatus: "Modified",
            weaknesses: [
               {
                  description: [
                     {
                        lang: "en",
                        value: "NVD-CWE-Other",
                     },
                  ],
                  source: "nvd@nist.gov",
                  type: "Primary",
               },
            ],
         },
      },
   },
}


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