gsd-2020-27304
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal
Aliases
Aliases
CVE-2020-27304


To clipboard 

{
   GSD: {
      alias: "CVE-2020-27304",
      description: "The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal",
      id: "GSD-2020-27304",
      references: [
         "https://www.suse.com/security/cve/CVE-2020-27304.html",
         "https://access.redhat.com/errata/RHSA-2021:4902",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2020-27304",
         ],
         details: "The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal",
         id: "GSD-2020-27304",
         modified: "2023-12-13T01:22:10.864133Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "vuln@vdoo.com",
            ID: "CVE-2020-27304",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "civetweb",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "!>=",
                                       version_value: "1.15",
                                    },
                                    {
                                       version_affected: ">=",
                                       version_value: "1.8",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "civetweb_project",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-23",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://jfrog.com/blog/cve-2020-27304-rce-via-directory-traversal-in-civetweb-http-server/",
                  refsource: "MISC",
                  url: "https://jfrog.com/blog/cve-2020-27304-rce-via-directory-traversal-in-civetweb-http-server/",
               },
               {
                  name: "https://groups.google.com/g/civetweb/c/yPBxNXdGgJQ",
                  refsource: "MISC",
                  url: "https://groups.google.com/g/civetweb/c/yPBxNXdGgJQ",
               },
               {
                  name: "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
                  refsource: "CONFIRM",
                  url: "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
               },
               {
                  name: "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
                  refsource: "CONFIRM",
                  url: "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:civetweb_project:civetweb:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "1.15",
                        versionStartIncluding: "1.8",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "1.0.1.1",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "vuln@vdoo.com",
               ID: "CVE-2020-27304",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "The CivetWeb web library does not validate uploaded filepaths when running on an OS other than Windows, when using the built-in HTTP form-based file upload mechanism, via the mg_handle_form_request API. Web applications that use the file upload form handler, and use parts of the user-controlled filename in the output path, are susceptible to directory traversal",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-22",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://jfrog.com/blog/cve-2020-27304-rce-via-directory-traversal-in-civetweb-http-server/",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                     ],
                     url: "https://jfrog.com/blog/cve-2020-27304-rce-via-directory-traversal-in-civetweb-http-server/",
                  },
                  {
                     name: "https://groups.google.com/g/civetweb/c/yPBxNXdGgJQ",
                     refsource: "MISC",
                     tags: [
                        "Mailing List",
                        "Third Party Advisory",
                     ],
                     url: "https://groups.google.com/g/civetweb/c/yPBxNXdGgJQ",
                  },
                  {
                     name: "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
                     refsource: "CONFIRM",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
                  },
                  {
                     name: "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
                     refsource: "CONFIRM",
                     tags: [],
                     url: "https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 7.5,
                  confidentialityImpact: "PARTIAL",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:L/Au:N/C:P/I:P/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               impactScore: 6.4,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "HIGH",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 9.8,
                  baseSeverity: "CRITICAL",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 5.9,
            },
         },
         lastModifiedDate: "2022-06-14T11:15Z",
         publishedDate: "2021-10-21T16:15Z",
      },
   },
}


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