WID-SEC-W-2024-0762

Vulnerability from csaf_certbund - Published: 2024-04-01 22:00 - Updated: 2024-04-01 22:00
Summary
xz: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode

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
XZ Utils bietet eine universelle Datenkompressionsbibliothek sowie Befehlszeilenwerkzeuge.
Angriff
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Debian Linux, SUSE Linux, Arch Linux, Fedora Linux, xz und Gentoo Linux ausnutzen, um beliebigen Programmcode auszuführen.
Betroffene Betriebssysteme
- Linux
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "kritisch"
    },
    "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": "XZ Utils bietet eine universelle Datenkompressionsbibliothek sowie Befehlszeilenwerkzeuge.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Debian Linux, SUSE Linux, Arch Linux, Fedora Linux, xz und Gentoo Linux ausnutzen, um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux",
        "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-2024-0762 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0762.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-0762 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0762"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Alert vom 2024-04-01",
        "url": "https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users"
      },
      {
        "category": "external",
        "summary": "GitHub Advisory Database",
        "url": "https://github.com/advisories/GHSA-rxwq-x6h5-x525"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla \u2013 Bug 2272210",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2272210"
      },
      {
        "category": "external",
        "summary": "CISA Report",
        "url": "https://www.cisa.gov/news-events/alerts/2024/03/29/reported-supply-chain-compromise-affecting-xz-utils-data-compression-library-cve-2024-3094"
      },
      {
        "category": "external",
        "summary": "Statement des Autors von xz",
        "url": "https://tukaani.org/xz-backdoor/"
      },
      {
        "category": "external",
        "summary": "Proof of Concept (PoC)",
        "url": "https://github.com/amlweems/xzbot"
      }
    ],
    "source_lang": "en-US",
    "title": "xz: Schwachstelle erm\u00f6glicht Ausf\u00fchren von beliebigem Programmcode",
    "tracking": {
      "current_release_date": "2024-04-01T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:07:05.845+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-0762",
      "initial_release_date": "2024-04-01T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-04-01T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "unstable",
                "product": {
                  "name": "Debian Linux unstable",
                  "product_id": "T033830",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:debian:debian_linux:unstable"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "T033781",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T033788",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Arch Linux",
            "product": {
              "name": "Open Source Arch Linux",
              "product_id": "T033780",
              "product_identification_helper": {
                "cpe": "cpe:/o:archlinux:archlinux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Open Source OpenSSH",
            "product": {
              "name": "Open Source OpenSSH",
              "product_id": "8223",
              "product_identification_helper": {
                "cpe": "cpe:/a:openbsd:openssh:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "5.6.0",
                "product": {
                  "name": "Open Source xz 5.6.0",
                  "product_id": "T033785",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:tukaani:xz:5.6.0"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "5.6.1",
                "product": {
                  "name": "Open Source xz 5.6.1",
                  "product_id": "T033786",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:tukaani:xz:5.6.1"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "xz"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "Tumbleweed",
                "product": {
                  "name": "SUSE Linux Tumbleweed",
                  "product_id": "T033783",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:suse_linux:tumbleweed"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "MicroOS",
                "product": {
                  "name": "SUSE Linux MicroOS",
                  "product_id": "T033784",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:suse_linux:microos"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Linux"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-3094",
      "notes": [
        {
          "category": "description",
          "text": "Es gibt eine Schwachstelle in xz aufgrund von eingebettetem b\u00f6sartigen Code, der eine Hintert\u00fcr bildet. Diese Bibliothek wird unter anderem im OpenSSH-Server verwendet. Der Backdoor-Code erlaubt es bestimmten entfernten Angreifern (die einen bestimmten privaten Schl\u00fcssel besitzen), beliebigen Payload \u00fcber SSH zu senden, der auf dem Server vor dem Authentifizierungsschritt ausgef\u00fchrt wird. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um beliebigen Programmcode mit den Rechten des SSH-Dienstes auszuf\u00fchren und so das System zu kompromittieren."
        }
      ],
      "product_status": {
        "known_affected": [
          "8223",
          "T033788",
          "T033785",
          "T033786",
          "T033830",
          "T033780",
          "T033783",
          "T033784",
          "T033781"
        ]
      },
      "release_date": "2024-04-01T22:00:00.000+00:00",
      "title": "CVE-2024-3094"
    }
  ]
}


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  • 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.



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