gsd-2021-39945
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked
Aliases
Aliases
CVE-2021-39945


To clipboard 

{
   GSD: {
      alias: "CVE-2021-39945",
      description: "Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked",
      id: "GSD-2021-39945",
      references: [
         "https://security.archlinux.org/CVE-2021-39945",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-39945",
         ],
         details: "Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked",
         id: "GSD-2021-39945",
         modified: "2023-12-13T01:23:16.011640Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@gitlab.com",
            ID: "CVE-2021-39945",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "GitLab",
                              version: {
                                 version_data: [
                                    {
                                       version_value: ">=14.5, <14.5.2",
                                    },
                                    {
                                       version_value: ">=14.4, <14.4.4",
                                    },
                                    {
                                       version_value: ">=9.4, <14.3.6",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "GitLab",
                  },
               ],
            },
         },
         credit: [
            {
               lang: "eng",
               value: "Thanks @muthu_prakash for reporting this vulnerability through our HackerOne bug bounty program",
            },
         ],
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked",
               },
            ],
         },
         impact: {
            cvss: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 2.6,
               baseSeverity: "LOW",
               confidentialityImpact: "NONE",
               integrityImpact: "LOW",
               privilegesRequired: "HIGH",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
               version: "3.1",
            },
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "Improper access control in GitLab",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://gitlab.com/gitlab-org/gitlab/-/issues/331675",
                  refsource: "MISC",
                  url: "https://gitlab.com/gitlab-org/gitlab/-/issues/331675",
               },
               {
                  name: "https://hackerone.com/reports/1198317",
                  refsource: "MISC",
                  url: "https://hackerone.com/reports/1198317",
               },
               {
                  name: "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json",
                  refsource: "CONFIRM",
                  url: "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "14.3.6",
                        versionStartIncluding: "9.4.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "14.3.6",
                        versionStartIncluding: "9.4.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "14.4.4",
                        versionStartIncluding: "14.4.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "14.4.4",
                        versionStartIncluding: "14.4.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "14.5.2",
                        versionStartIncluding: "14.5.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "14.5.2",
                        versionStartIncluding: "14.5.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "cve@gitlab.com",
               ID: "CVE-2021-39945",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "Improper access control in the GitLab CE/EE API affecting all versions starting from 9.4 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an author of a Merge Request to approve the Merge Request even after having their project access revoked",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-863",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://gitlab.com/gitlab-org/gitlab/-/issues/331675",
                     refsource: "MISC",
                     tags: [
                        "Broken Link",
                     ],
                     url: "https://gitlab.com/gitlab-org/gitlab/-/issues/331675",
                  },
                  {
                     name: "https://hackerone.com/reports/1198317",
                     refsource: "MISC",
                     tags: [
                        "Permissions Required",
                        "Third Party Advisory",
                     ],
                     url: "https://hackerone.com/reports/1198317",
                  },
                  {
                     name: "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json",
                     refsource: "CONFIRM",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39945.json",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "SINGLE",
                  availabilityImpact: "NONE",
                  baseScore: 4,
                  confidentialityImpact: "NONE",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:L/Au:S/C:N/I:P/A:N",
                  version: "2.0",
               },
               exploitabilityScore: 8,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "NONE",
                  baseScore: 2.7,
                  baseSeverity: "LOW",
                  confidentialityImpact: "NONE",
                  integrityImpact: "LOW",
                  privilegesRequired: "HIGH",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N",
                  version: "3.1",
               },
               exploitabilityScore: 1.2,
               impactScore: 1.4,
            },
         },
         lastModifiedDate: "2021-12-15T17:21Z",
         publishedDate: "2021-12-13T16:15Z",
      },
   },
}


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