cve-2021-21284
Vulnerability from cvelistv5
Published
2021-02-02 17:55
Modified
2024-08-03 18:09
Severity
6.8 (Medium) - cvssV3_1 - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Summary
privilege escalation in Moby
References
SourceURLTags
security-advisories@github.comhttps://docs.docker.com/engine/release-notes/#20103Release Notes, Vendor Advisory
security-advisories@github.comhttps://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7cPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/moby/moby/releases/tag/v19.03.15Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/moby/moby/releases/tag/v20.10.3Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpcThird Party Advisory
security-advisories@github.comhttps://security.gentoo.org/glsa/202107-23Patch, Third Party Advisory
security-advisories@github.comhttps://security.netapp.com/advisory/ntap-20210226-0005/Third Party Advisory
security-advisories@github.comhttps://www.debian.org/security/2021/dsa-4865Third Party Advisory
Impacted products
VendorProduct
mobymoby
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:09:15.042Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.docker.com/engine/release-notes/#20103"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/moby/moby/releases/tag/v20.10.3"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/moby/moby/releases/tag/v19.03.15"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210226-0005/"
          },
          {
            "name": "DSA-4865",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4865"
          },
          {
            "name": "GLSA-202107-23",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202107-23"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "moby",
          "vendor": "moby",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 19.03.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 20.0.0, \u003c 20.10.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using \"--userns-remap\", if the root user in the remapped namespace has access to the host filesystem they can modify files under \"/var/lib/docker/\u003cremapping\u003e\" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-10T04:06:25",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.docker.com/engine/release-notes/#20103"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/moby/moby/releases/tag/v20.10.3"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/moby/moby/releases/tag/v19.03.15"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210226-0005/"
        },
        {
          "name": "DSA-4865",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4865"
        },
        {
          "name": "GLSA-202107-23",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202107-23"
        }
      ],
      "source": {
        "advisory": "GHSA-7452-xqpj-6rpc",
        "discovery": "UNKNOWN"
      },
      "title": "privilege escalation in Moby",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-21284",
          "STATE": "PUBLIC",
          "TITLE": "privilege escalation in Moby"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "moby",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 19.03.15"
                          },
                          {
                            "version_value": "\u003e= 20.0.0, \u003c 20.10.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "moby"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using \"--userns-remap\", if the root user in the remapped namespace has access to the host filesystem they can modify files under \"/var/lib/docker/\u003cremapping\u003e\" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://docs.docker.com/engine/release-notes/#20103",
              "refsource": "MISC",
              "url": "https://docs.docker.com/engine/release-notes/#20103"
            },
            {
              "name": "https://github.com/moby/moby/releases/tag/v20.10.3",
              "refsource": "MISC",
              "url": "https://github.com/moby/moby/releases/tag/v20.10.3"
            },
            {
              "name": "https://github.com/moby/moby/releases/tag/v19.03.15",
              "refsource": "MISC",
              "url": "https://github.com/moby/moby/releases/tag/v19.03.15"
            },
            {
              "name": "https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc",
              "refsource": "CONFIRM",
              "url": "https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc"
            },
            {
              "name": "https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c",
              "refsource": "MISC",
              "url": "https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210226-0005/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210226-0005/"
            },
            {
              "name": "DSA-4865",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4865"
            },
            {
              "name": "GLSA-202107-23",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/202107-23"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-7452-xqpj-6rpc",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-21284",
    "datePublished": "2021-02-02T17:55:22",
    "dateReserved": "2020-12-22T00:00:00",
    "dateUpdated": "2024-08-03T18:09:15.042Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-21284\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-02-02T18:15:11.827\",\"lastModified\":\"2022-04-29T19:22:01.677\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using \\\"--userns-remap\\\", if the root user in the remapped namespace has access to the host filesystem they can modify files under \\\"/var/lib/docker/\u003cremapping\u003e\\\" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.\"},{\"lang\":\"es\",\"value\":\"En Docker versiones anteriores a 9.03.15, 20.10.3, se presenta una vulnerabilidad que involucra la opci\u00f3n --userns-remap en la que un acceso a una root reasignada permite una escalada de privilegios a la root actual.\u0026#xa0;Cuando se usa \\\"--userns-remap\\\", si el usuario root en el espacio de nombres reasignado tiene acceso al sistema de archivos del host, puede modificar archivos en \\\"/var/lib/docker/(remapping)\\\" que causa la escritura de archivos con privilegios extendidos.\u0026#xa0;Las versiones 20.10.3 y 19.03.15 contienen parches que evitan una escalada de privilegios del usuario reasignado\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.8,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.3,\"impactScore\":4.0},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.8,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.3,\"impactScore\":4.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:L/Au:S/C:N/I:P/A:N\",\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\",\"baseScore\":2.7},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":5.1,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"19.03.15\",\"matchCriteriaId\":\"C6B22016-AB78-4E82-9F65-AEC2526F3EDF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:docker:docker:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"20.0.0\",\"versionEndExcluding\":\"20.10.3\",\"matchCriteriaId\":\"B4427D14-D219-490B-8467-40FE253775A1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"11.0.0\",\"versionEndIncluding\":\"11.60.3\",\"matchCriteriaId\":\"BD1E9594-C46F-40D1-8BC2-6B16635B55C4\"}]}]}],\"references\":[{\"url\":\"https://docs.docker.com/engine/release-notes/#20103\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/moby/moby/commit/64bd4485b3a66a597c02c95f5776395e540b2c7c\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/moby/moby/releases/tag/v19.03.15\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/moby/moby/releases/tag/v20.10.3\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/moby/moby/security/advisories/GHSA-7452-xqpj-6rpc\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202107-23\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210226-0005/\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4865\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.