gsd-2021-31207
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Microsoft Exchange Server Security Feature Bypass Vulnerability
Aliases
Aliases
CVE-2021-31207


To clipboard 

{
   GSD: {
      alias: "CVE-2021-31207",
      description: "Microsoft Exchange Server Security Feature Bypass Vulnerability",
      id: "GSD-2021-31207",
      references: [
         "https://packetstormsecurity.com/files/cve/CVE-2021-31207",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-31207",
         ],
         details: "Microsoft Exchange Server Security Feature Bypass Vulnerability",
         id: "GSD-2021-31207",
         modified: "2023-12-13T01:23:13.397576Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cisa.gov": {
         cveID: "CVE-2021-31207",
         dateAdded: "2021-11-03",
         dueDate: "2021-11-17",
         product: "Microsoft Exchange Server",
         requiredAction: "Apply updates per vendor instructions.",
         shortDescription: "Microsoft Exchange Server Security Feature Bypass Vulnerability",
         vendorProject: "Microsoft",
         vulnerabilityName: "Microsoft Exchange Server Security Feature Bypass Vulnerability",
      },
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secure@microsoft.com",
            ID: "CVE-2021-31207",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "Microsoft Exchange Server 2013 Cumulative Update 23",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.00.0",
                                       version_value: "15.00.1497.018",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2019 Cumulative Update 9",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.02.0",
                                       version_value: "15.02.0858.012",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2016 Cumulative Update 20",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.01.0",
                                       version_value: "15.01.2242.010",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2016 Cumulative Update 19",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.01.0",
                                       version_value: "15.01.2176.014",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Microsoft Exchange Server 2019 Cumulative Update 8",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "15.02.0",
                                       version_value: "15.02.0792.015",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "Microsoft",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "Microsoft Exchange Server Security Feature Bypass Vulnerability",
               },
            ],
         },
         impact: {
            cvss: [
               {
                  baseScore: 6.6,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:H/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: "Defense in Depth",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207",
                  refsource: "MISC",
                  url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207",
               },
               {
                  name: "https://www.zerodayinitiative.com/advisories/ZDI-21-819/",
                  refsource: "MISC",
                  url: "https://www.zerodayinitiative.com/advisories/ZDI-21-819/",
               },
               {
                  name: "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "secure@microsoft.com",
               ID: "CVE-2021-31207",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "Microsoft Exchange Server Security Feature Bypass Vulnerability",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-22",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "N/A",
                     refsource: "N/A",
                     tags: [
                        "Patch",
                        "Vendor Advisory",
                     ],
                     url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207",
                  },
                  {
                     name: "https://www.zerodayinitiative.com/advisories/ZDI-21-819/",
                     refsource: "MISC",
                     tags: [
                        "Third Party Advisory",
                        "VDB Entry",
                     ],
                     url: "https://www.zerodayinitiative.com/advisories/ZDI-21-819/",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                        "VDB Entry",
                     ],
                     url: "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  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,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "HIGH",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 6.6,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "HIGH",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 0.7,
               impactScore: 5.9,
            },
         },
         lastModifiedDate: "2023-08-02T00:15Z",
         publishedDate: "2021-05-11T19:15Z",
      },
   },
}


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