gsd-2019-10773
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.
Aliases
Aliases
CVE-2019-10773


To clipboard 

{
   GSD: {
      alias: "CVE-2019-10773",
      description: "In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted \"bin\" keys. Existing files could be overwritten depending on the current user permission set.",
      id: "GSD-2019-10773",
      references: [
         "https://access.redhat.com/errata/RHSA-2020:0475",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2019-10773",
         ],
         details: "In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted \"bin\" keys. Existing files could be overwritten depending on the current user permission set.",
         id: "GSD-2019-10773",
         modified: "2023-12-13T01:23:58.767783Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "report@snyk.io",
            ID: "CVE-2019-10773",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "Yarn",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "All versions prior to version 1.21.1",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted \"bin\" keys. Existing files could be overwritten depending on the current user permission set.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "Arbitrary File Write",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://snyk.io/vuln/SNYK-JS-YARN-537806,",
                  refsource: "MISC",
                  url: "https://snyk.io/vuln/SNYK-JS-YARN-537806,",
               },
               {
                  name: "https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7",
                  refsource: "MISC",
                  url: "https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7",
               },
               {
                  name: "https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023",
                  refsource: "CONFIRM",
                  url: "https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023",
               },
               {
                  name: "https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/",
                  refsource: "MISC",
                  url: "https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/",
               },
               {
                  name: "FEDORA-2020-766ce5adae",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/",
               },
               {
                  name: "FEDORA-2020-7525beefa1",
                  refsource: "FEDORA",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/",
               },
               {
                  name: "RHSA-2020:0475",
                  refsource: "REDHAT",
                  url: "https://access.redhat.com/errata/RHSA-2020:0475",
               },
            ],
         },
      },
      "gitlab.com": {
         advisories: [
            {
               affected_range: "<1.21.1",
               affected_versions: "All versions before 1.21.1",
               cvss_v2: "AV:N/AC:M/Au:N/C:P/I:P/A:P",
               cvss_v3: "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
               cwe_ids: [
                  "CWE-1035",
                  "CWE-59",
                  "CWE-937",
               ],
               date: "2019-12-27",
               description: "In Yarn, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted \"bin\" keys. Existing files could be overwritten depending on the current user permission set.",
               fixed_versions: [
                  "1.21.1",
               ],
               identifier: "CVE-2019-10773",
               identifiers: [
                  "CVE-2019-10773",
               ],
               not_impacted: "All versions starting from 1.21.1",
               package_slug: "npm/yarn",
               pubdate: "2019-12-16",
               solution: "Upgrade to version 1.21.1 or above.",
               title: "Improper Link Resolution Before File Access",
               urls: [
                  "https://nvd.nist.gov/vuln/detail/CVE-2019-10773",
               ],
               uuid: "de6682c7-a607-407d-a050-376675cdf8bc",
            },
         ],
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:yarnpkg:yarn:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "1.21.1",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "report@snyk.io",
               ID: "CVE-2019-10773",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted \"bin\" keys. Existing files could be overwritten depending on the current user permission set.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-59",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023",
                     refsource: "CONFIRM",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023",
                  },
                  {
                     name: "https://snyk.io/vuln/SNYK-JS-YARN-537806,",
                     refsource: "MISC",
                     tags: [
                        "Broken Link",
                     ],
                     url: "https://snyk.io/vuln/SNYK-JS-YARN-537806,",
                  },
                  {
                     name: "https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7",
                     refsource: "MISC",
                     tags: [
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7",
                  },
                  {
                     name: "https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                     ],
                     url: "https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/",
                  },
                  {
                     name: "FEDORA-2020-7525beefa1",
                     refsource: "FEDORA",
                     tags: [],
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/",
                  },
                  {
                     name: "FEDORA-2020-766ce5adae",
                     refsource: "FEDORA",
                     tags: [],
                     url: "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/",
                  },
                  {
                     name: "RHSA-2020:0475",
                     refsource: "REDHAT",
                     tags: [],
                     url: "https://access.redhat.com/errata/RHSA-2020:0475",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "MEDIUM",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 6.8,
                  confidentialityImpact: "PARTIAL",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:M/Au:N/C:P/I:P/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 8.6,
               impactScore: 6.4,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: true,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 7.8,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "REQUIRED",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 1.8,
               impactScore: 5.9,
            },
         },
         lastModifiedDate: "2020-02-08T04:15Z",
         publishedDate: "2019-12-16T20:15Z",
      },
   },
}


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