gsd-2021-20206
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use special elements such as "../" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Aliases
Aliases
CVE-2021-20206


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-20206",
    "description": "An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the \u0027type\u0027 field in the network configuration, it is possible to use special elements such as \"../\" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as \u0027reboot\u0027. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
    "id": "GSD-2021-20206",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-20206.html",
      "https://access.redhat.com/errata/RHSA-2022:0492",
      "https://access.redhat.com/errata/RHSA-2021:3001",
      "https://access.redhat.com/errata/RHSA-2021:2438",
      "https://access.redhat.com/errata/RHSA-2021:1552",
      "https://access.redhat.com/errata/RHSA-2021:1007",
      "https://access.redhat.com/errata/RHSA-2021:1005",
      "https://access.redhat.com/errata/RHSA-2021:0799",
      "https://access.redhat.com/errata/RHSA-2022:1660"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20206"
      ],
      "details": "An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the \u0027type\u0027 field in the network configuration, it is possible to use special elements such as \"../\" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as \u0027reboot\u0027. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
      "id": "GSD-2021-20206",
      "modified": "2023-12-13T01:23:12.464372Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-20206",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "containernetworking-cni",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "containernetworking/cni 0.8.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
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      "description": {
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            "value": "An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the \u0027type\u0027 field in the network configuration, it is possible to use special elements such as \"../\" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as \u0027reboot\u0027. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20-\u003eCWE-22"
              }
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          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1919391",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1919391"
          },
          {
            "name": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549",
            "refsource": "MISC",
            "url": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv0.8.1",
          "affected_versions": "All versions before 0.8.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-22",
            "CWE-937"
          ],
          "date": "2022-04-12",
          "description": "An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the \u0027type\u0027 field in the network configuration, it is possible to use special elements such as \"../\" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as \u0027reboot\u0027. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "fixed_versions": [
            "v0.8.1"
          ],
          "identifier": "CVE-2021-20206",
          "identifiers": [
            "GHSA-xjqr-g762-pxwp",
            "CVE-2021-20206"
          ],
          "not_impacted": "All versions starting from 0.8.1",
          "package_slug": "go/github.com/containernetworking/cni",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to version 0.8.1 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-20206",
            "https://github.com/containernetworking/cni/pull/808",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1919391",
            "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549",
            "https://github.com/advisories/GHSA-xjqr-g762-pxwp"
          ],
          "uuid": "4dec30da-766e-4c53-8e00-64fa9f237212",
          "versions": [
            {
              "commit": {
                "sha": "9fc34aee0a6396d6484992035819c92c42522eea",
                "tags": [
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                ],
                "timestamp": "20210202142012"
              },
              "number": "v0.8.1"
            }
          ]
        },
        {
          "affected_range": "\u003cv0.8.1",
          "affected_versions": "All versions before 0.8.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-22",
            "CWE-937"
          ],
          "date": "2022-04-12",
          "description": "An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the \u0027type\u0027 field in the network configuration, it is possible to use special elements such as \"../\" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as \u0027reboot\u0027. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.",
          "fixed_versions": [
            "v0.8.1"
          ],
          "identifier": "CVE-2021-20206",
          "identifiers": [
            "GHSA-xjqr-g762-pxwp",
            "CVE-2021-20206"
          ],
          "not_impacted": "All versions starting from 0.8.1",
          "package_slug": "go/github.com/containernetworking/cni/pkg/invoke",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to version 0.8.1 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-20206",
            "https://github.com/containernetworking/cni/pull/808",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1919391",
            "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549",
            "https://github.com/advisories/GHSA-xjqr-g762-pxwp"
          ],
          "uuid": "bdeeb390-bab6-4499-9204-8ae1fedf046b",
          "versions": [
            {
              "commit": {
                "sha": "9fc34aee0a6396d6484992035819c92c42522eea",
                "tags": [
                  "v0.8.1"
                ],
                "timestamp": "20210202142012"
              },
              "number": "v0.8.1"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:linuxfoundation:container_network_interface:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.8.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2021-20206"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "en",
              "value": "An improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the \u0027type\u0027 field in the network configuration, it is possible to use special elements such as \"../\" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as \u0027reboot\u0027. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-22"
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              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1919391",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1919391"
            },
            {
              "name": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549"
            }
          ]
        }
      },
      "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": 8.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-08-05T17:42Z",
      "publishedDate": "2021-03-26T22:15Z"
    }
  }
}


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