WID-SEC-W-2024-1047
Vulnerability from csaf_certbund
Published
2024-05-06 22:00
Modified
2025-01-16 23:00
Summary
VPN Clients / DHCP: 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
DHCP ist das Dynamic Host Configuration Protocol zur automatischen Konfiguration von Clients im Netzwerk.
Angriff
Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in VPN-Clients ausnutzen, die auf DHCP konfigurierten Systemen laufen, um den Datenverkehr umzuleiten.
Betroffene Betriebssysteme
- iPhoneOS - Linux - MacOS X - Sonstiges - UNIX - Windows


To clipboard 

{
   document: {
      aggregate_severity: {
         text: "hoch",
      },
      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 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.",
         },
         {
            category: "description",
            text: "DHCP ist das Dynamic Host Configuration Protocol zur automatischen Konfiguration von Clients im Netzwerk.",
            title: "Produktbeschreibung",
         },
         {
            category: "summary",
            text: "Ein Angreifer aus einem angrenzenden Netzwerk kann eine Schwachstelle in VPN-Clients ausnutzen, die auf DHCP konfigurierten Systemen laufen, um den Datenverkehr umzuleiten.",
            title: "Angriff",
         },
         {
            category: "general",
            text: "- iPhoneOS\n- Linux\n- MacOS X\n- Sonstiges\n- UNIX\n- Windows",
            title: "Betroffene Betriebssysteme",
         },
      ],
      publisher: {
         category: "other",
         contact_details: "csaf-provider@cert-bund.de",
         name: "Bundesamt für Sicherheit in der Informationstechnik",
         namespace: "https://www.bsi.bund.de",
      },
      references: [
         {
            category: "self",
            summary: "WID-SEC-W-2024-1047 - CSAF Version",
            url: "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1047.json",
         },
         {
            category: "self",
            summary: "WID-SEC-2024-1047 - Portal Version",
            url: "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1047",
         },
         {
            category: "external",
            summary: "GitHub Advisory Database vom 2024-05-06",
            url: "https://github.com/advisories/GHSA-jcv7-6v4q-4m7x",
         },
         {
            category: "external",
            summary: "TunnelVision Website vom 2024-05-06",
            url: "https://tunnelvisionbug.com",
         },
         {
            category: "external",
            summary: "Leviathan Security Blog vom 2024-05-06",
            url: "https://www.leviathansecurity.com/blog/tunnelvision",
         },
         {
            category: "external",
            summary: "Palo Alto Networks Security Advisories vom 2024-05-16",
            url: "https://security.paloaltonetworks.com/CVE-2024-3661",
         },
         {
            category: "external",
            summary: "F5 Security Advisory K000139553 vom 2024-05-21",
            url: "https://my.f5.com/manage/s/article/K000139553",
         },
         {
            category: "external",
            summary: "FortiGuard Labs PSIRT Advisory FG-IR-24-170 vom 2024-06-11",
            url: "https://fortiguard.fortinet.com/psirt/FG-IR-24-170",
         },
         {
            category: "external",
            summary: "Citrix Security Advisory CTX677069 vom 2024-06-24",
            url: "https://support.citrix.com/article/CTX677069",
         },
         {
            category: "external",
            summary: "Citrix Security Advisory CTX677069 vom 2024-06-24",
            url: "https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661",
         },
         {
            category: "external",
            summary: "Red Hat Security Advisory RHSA-2025:0288 vom 2025-01-13",
            url: "https://access.redhat.com/errata/RHSA-2025:0288",
         },
         {
            category: "external",
            summary: "Oracle Linux Security Advisory ELSA-2025-0288 vom 2025-01-14",
            url: "http://linux.oracle.com/errata/ELSA-2025-0288.html",
         },
         {
            category: "external",
            summary: "Red Hat Security Advisory RHSA-2025:0377 vom 2025-01-16",
            url: "https://access.redhat.com/errata/RHSA-2025:0377",
         },
         {
            category: "external",
            summary: "Oracle Linux Security Advisory ELSA-2025-0377 vom 2025-01-17",
            url: "https://linux.oracle.com/errata/ELSA-2025-0377.html",
         },
      ],
      source_lang: "en-US",
      title: "VPN Clients / DHCP: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen",
      tracking: {
         current_release_date: "2025-01-16T23:00:00.000+00:00",
         generator: {
            date: "2025-01-17T09:22:00.934+00:00",
            engine: {
               name: "BSI-WID",
               version: "1.3.10",
            },
         },
         id: "WID-SEC-W-2024-1047",
         initial_release_date: "2024-05-06T22:00:00.000+00:00",
         revision_history: [
            {
               date: "2024-05-06T22:00:00.000+00:00",
               number: "1",
               summary: "Initiale Fassung",
            },
            {
               date: "2024-05-16T22:00:00.000+00:00",
               number: "2",
               summary: "Neue Updates aufgenommen",
            },
            {
               date: "2024-05-20T22:00:00.000+00:00",
               number: "3",
               summary: "Neue Updates von F5 aufgenommen",
            },
            {
               date: "2024-06-11T22:00:00.000+00:00",
               number: "4",
               summary: "Neue Updates von Fortinet aufgenommen",
            },
            {
               date: "2024-06-24T22:00:00.000+00:00",
               number: "5",
               summary: "Neue Updates von Citrix aufgenommen",
            },
            {
               date: "2024-06-25T22:00:00.000+00:00",
               number: "6",
               summary: "Korrektur",
            },
            {
               date: "2025-01-12T23:00:00.000+00:00",
               number: "7",
               summary: "Neue Updates von Red Hat aufgenommen",
            },
            {
               date: "2025-01-13T23:00:00.000+00:00",
               number: "8",
               summary: "Neue Updates von Oracle Linux aufgenommen",
            },
            {
               date: "2025-01-16T23:00:00.000+00:00",
               number: "9",
               summary: "Neue Updates von Red Hat und Oracle Linux aufgenommen",
            },
         ],
         status: "final",
         version: "9",
      },
   },
   product_tree: {
      branches: [
         {
            branches: [
               {
                  category: "product_name",
                  name: "Apple iOS",
                  product: {
                     name: "Apple iOS",
                     product_id: "T034563",
                     product_identification_helper: {
                        cpe: "cpe:/o:apple:iphone_os:-",
                     },
                  },
               },
               {
                  category: "product_name",
                  name: "Apple macOS",
                  product: {
                     name: "Apple macOS",
                     product_id: "T034564",
                     product_identification_helper: {
                        cpe: "cpe:/o:apple:mac_os:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Apple",
         },
         {
            branches: [
               {
                  category: "product_name",
                  name: "Citrix Systems Citrix Gateway",
                  product: {
                     name: "Citrix Systems Citrix Gateway",
                     product_id: "616020",
                     product_identification_helper: {
                        cpe: "cpe:/h:citrix:gateway:-",
                     },
                  },
               },
               {
                  category: "product_name",
                  name: "Citrix Systems NetScaler",
                  product: {
                     name: "Citrix Systems NetScaler",
                     product_id: "70427",
                     product_identification_helper: {
                        cpe: "cpe:/a:citrix:netscaler:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Citrix Systems",
         },
         {
            branches: [
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "17.1.0-17.1.1",
                        product: {
                           name: "F5 BIG-IP 17.1.0-17.1.1",
                           product_id: "T034899",
                           product_identification_helper: {
                              cpe: "cpe:/a:f5:big-ip:17.1.0_-_17.1.1",
                           },
                        },
                     },
                     {
                        category: "product_version",
                        name: "16.1.0-16.1.4",
                        product: {
                           name: "F5 BIG-IP 16.1.0-16.1.4",
                           product_id: "T034901",
                           product_identification_helper: {
                              cpe: "cpe:/a:f5:big-ip:16.1.0_-_16.1.4",
                           },
                        },
                     },
                     {
                        category: "product_version",
                        name: "15.1.0-15.1.10",
                        product: {
                           name: "F5 BIG-IP 15.1.0-15.1.10",
                           product_id: "T034902",
                           product_identification_helper: {
                              cpe: "cpe:/a:f5:big-ip:15.1.0_-_15.1.10",
                           },
                        },
                     },
                     {
                        category: "product_version",
                        name: "ARM Clients 7.2.3-7.2.4",
                        product: {
                           name: "F5 BIG-IP ARM Clients 7.2.3-7.2.4",
                           product_id: "T034906",
                           product_identification_helper: {
                              cpe: "cpe:/a:f5:big-ip:7.2.3_-_7.2.4::arm_clients",
                           },
                        },
                     },
                  ],
                  category: "product_name",
                  name: "BIG-IP",
               },
            ],
            category: "vendor",
            name: "F5",
         },
         {
            branches: [
               {
                  category: "product_name",
                  name: "Fortinet FortiClient",
                  product: {
                     name: "Fortinet FortiClient",
                     product_id: "T022517",
                     product_identification_helper: {
                        cpe: "cpe:/a:fortinet:forticlient:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Fortinet",
         },
         {
            branches: [
               {
                  category: "product_name",
                  name: "Microsoft Windows",
                  product: {
                     name: "Microsoft Windows",
                     product_id: "T034562",
                     product_identification_helper: {
                        cpe: "cpe:/o:microsoft:windows:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Microsoft",
         },
         {
            branches: [
               {
                  category: "product_name",
                  name: "Open Source Linux",
                  product: {
                     name: "Open Source Linux",
                     product_id: "T034561",
                     product_identification_helper: {
                        cpe: "cpe:/o:open_source:linux:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Open Source",
         },
         {
            branches: [
               {
                  category: "product_name",
                  name: "Oracle Linux",
                  product: {
                     name: "Oracle Linux",
                     product_id: "T004914",
                     product_identification_helper: {
                        cpe: "cpe:/o:oracle:linux:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Oracle",
         },
         {
            branches: [
               {
                  branches: [
                     {
                        category: "product_version",
                        name: "app",
                        product: {
                           name: "PaloAlto Networks GlobalProtect app",
                           product_id: "T034889",
                           product_identification_helper: {
                              cpe: "cpe:/a:paloaltonetworks:globalprotect:app",
                           },
                        },
                     },
                  ],
                  category: "product_name",
                  name: "GlobalProtect",
               },
            ],
            category: "vendor",
            name: "PaloAlto Networks",
         },
         {
            branches: [
               {
                  category: "product_name",
                  name: "Red Hat Enterprise Linux",
                  product: {
                     name: "Red Hat Enterprise Linux",
                     product_id: "67646",
                     product_identification_helper: {
                        cpe: "cpe:/o:redhat:enterprise_linux:-",
                     },
                  },
               },
            ],
            category: "vendor",
            name: "Red Hat",
         },
      ],
   },
   vulnerabilities: [
      {
         cve: "CVE-2024-3661",
         notes: [
            {
               category: "description",
               text: "Auf Systemen, die über DHCP konfiguriert werden, gibt es eine Schwachstelle im Zusammenhang mit VPN-Implementierungen. Die Ursache liegt in der DHCP Option 121, die eine Modifikation der Routing-Informationen ermöglicht. Ein Angreifer aus einem angrenzenden Netzwerk kann diese Schwachstelle ausnutzen, um Netzwerkverkehr umzuleiten, der eigentlich durch das VPN geschützt werden sollte. In der Folge kann der Angreifer den Verkehr und die darin enthaltenen Metadaten lesen und ggf. manipulieren.",
            },
         ],
         product_status: {
            known_affected: [
               "T034899",
               "616020",
               "67646",
               "T034902",
               "T034901",
               "T034889",
               "T034561",
               "T004914",
               "T034564",
               "T034563",
               "T034562",
               "T022517",
               "T034906",
               "70427",
            ],
         },
         release_date: "2024-05-06T22:00:00.000+00:00",
         title: "CVE-2024-3661",
      },
   ],
}


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