csaf_certbund - wid-sec-w-2023-0019

WID-SEC-W-2023-0019

Vulnerability from csaf_certbund - Published: 2021-07-14 22:00 - Updated: 2023-01-03 23:00

Summary

Kubernetes: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Kubernetes ist ein Werkzeug zur Automatisierung der Bereitstellung, Skalierung und Verwaltung von containerisierten Anwendungen.

Angriff

Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Kubernetes ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme

- UNIX - Linux - Windows - Sonstiges

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Kubernetes ist ein Werkzeug zur Automatisierung der Bereitstellung, Skalierung und Verwaltung von containerisierten Anwendungen.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Kubernetes ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- Windows\n- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-0019 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-0019.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-0019 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-0019"
      },
      {
        "category": "external",
        "summary": "IBM Security Bulletin 6852449 vom 2023-01-03",
        "url": "https://www.ibm.com/support/pages/node/6852449"
      },
      {
        "category": "external",
        "summary": "Kubernetes Github vom 2021-07-14",
        "url": "https://github.com/kubernetes/kubernetes/issues/103675"
      }
    ],
    "source_lang": "en-US",
    "title": "Kubernetes: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2023-01-03T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:40:45.411+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2023-0019",
      "initial_release_date": "2021-07-14T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-07-14T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-01-03T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von IBM aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "IBM InfoSphere Information Server 11.7.1.4",
            "product": {
              "name": "IBM InfoSphere Information Server 11.7.1.4",
              "product_id": "T025732",
              "product_identification_helper": {
                "cpe": "cpe:/a:ibm:infosphere_information_server:11.7.1.4"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "IBM"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Kubernetes",
            "product": {
              "name": "Open Source Kubernetes",
              "product_id": "T017843",
              "product_identification_helper": {
                "cpe": "cpe:/a:kubernetes:kubernetes:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-25740",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Kubernetes, die einen Confused Deputy-Angriff erm\u00f6glicht. Netzwerkverkehr kann aufgrund eines Design-Fehlers an Orte geschickt werden, welche einem Nutzer nicht zug\u00e4nglich sein sollten. Ein entfernter, authentisierter Angreifer kann diese Schwachstelle ausnutzen, um Sicherheitsvorkehrungen zu umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T017843",
          "T025732"
        ]
      },
      "release_date": "2021-07-14T22:00:00.000+00:00",
      "title": "CVE-2021-25740"
    }
  ]
}

CVE-2021-25740 (GCVE-0-2021-25740)

Vulnerability from cvelistv5 – Published: 2021-09-20 17:05 – Updated: 2024-09-16 19:30

Summary

A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack.

Severity ?

3.1 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-441 - Unintended Proxy or Intermediary

Assigner

kubernetes

References

URL

Tags

	https://groups.google.com/g/kubernetes-security-a…	x_refsource_MISC
	https://github.com/kubernetes/kubernetes/issues/103675	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2021101…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Kubernetes	Kubernetes	Affected: unspecified , ≤ 1.20.11 (custom) Unknown: next of 1.20.11 , < unspecified (custom) Affected: unspecified , ≤ 1.21.5 (custom) Unknown: next of 1.21.5 , < unspecified (custom) Affected: unspecified , ≤ 1.22.2 (custom) Unknown: next of 1.22.2 , < unspecified (custom)

Credits

Rob Scott

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:11:27.960Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/kubernetes/kubernetes/issues/103675"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20211014-0001/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kubernetes",
          "vendor": "Kubernetes",
          "versions": [
            {
              "lessThanOrEqual": "1.20.11",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "unknown",
              "version": "next of 1.20.11",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "1.21.5",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "unknown",
              "version": "next of 1.21.5",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "1.22.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "unspecified",
              "status": "unknown",
              "version": "next of 1.22.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Rob Scott"
        }
      ],
      "datePublic": "2021-07-14T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-441",
              "description": "CWE-441 Unintended Proxy or Intermediary",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-14T08:06:14",
        "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
        "shortName": "kubernetes"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubernetes/kubernetes/issues/103675"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20211014-0001/"
        }
      ],
      "source": {
        "defect": [
          "https://github.com/kubernetes/kubernetes/issues/103675"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Holes in EndpointSlice Validation Enable Host Network Hijack",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@kubernetes.io",
          "DATE_PUBLIC": "2021-07-14T21:23:00.000Z",
          "ID": "CVE-2021-25740",
          "STATE": "PUBLIC",
          "TITLE": "Holes in EndpointSlice Validation Enable Host Network Hijack"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Kubernetes",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_value": "1.20.11"
                          },
                          {
                            "version_affected": "\u003e?",
                            "version_value": "1.20.11"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_value": "1.21.5"
                          },
                          {
                            "version_affected": "\u003e?",
                            "version_value": "1.21.5"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_value": "1.22.2"
                          },
                          {
                            "version_affected": "\u003e?",
                            "version_value": "1.22.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Kubernetes"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Rob Scott"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A security issue was discovered with Kubernetes that could enable users to send network traffic to locations they would otherwise not have access to via a confused deputy attack."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-441 Unintended Proxy or Intermediary"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE",
              "refsource": "MISC",
              "url": "https://groups.google.com/g/kubernetes-security-announce/c/WYE9ptrhSLE"
            },
            {
              "name": "https://github.com/kubernetes/kubernetes/issues/103675",
              "refsource": "MISC",
              "url": "https://github.com/kubernetes/kubernetes/issues/103675"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20211014-0001/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20211014-0001/"
            }
          ]
        },
        "source": {
          "defect": [
            "https://github.com/kubernetes/kubernetes/issues/103675"
          ],
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
    "assignerShortName": "kubernetes",
    "cveId": "CVE-2021-25740",
    "datePublished": "2021-09-20T17:05:18.065542Z",
    "dateReserved": "2021-01-21T00:00:00",
    "dateUpdated": "2024-09-16T19:30:45.241Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

WID-SEC-W-2023-0019

CVE-2021-25740 (GCVE-0-2021-25740)

Tags

Sightings

Nomenclature