WID-SEC-W-2024-0872

Vulnerability from csaf_certbund - Published: 2019-01-10 23:00 - Updated: 2024-05-07 22:00
Summary
OpenSSH: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
Severity
Mittel
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: OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.
Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in OpenSSH ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
Betroffene Betriebssysteme: - Linux - UNIX - Windows
CVE-2018-20685

Es existiert eine nicht näher beschriebene Schwachstelle in OpenSSH. Die Schwachstelle befindet sich in SCP Client in [scp.c]. Ein Angreifer kann diese nutzen und durch Übermittlung des Dateinamens "." oder eines leeren Dateinamens Zugriffsbeschränkungen umgehen.

Affected products
Product Identifier Version Remediation
Open Source OpenSSH 7.9
Open Source / OpenSSH
 cpe:/a:openbsd:openssh:- 7.9
Red Hat Enterprise Linux
Red Hat
 cpe:/o:redhat:enterprise_linux:- —
HPE HP-UX
HPE
 cpe:/o:hp:hp-ux:- —
Open Source Arch Linux
Open Source
 cpe:/o:archlinux:archlinux:- —
Dell NetWorker virtual
Dell / NetWorker
 cpe:/a:dell:networker:virtual virtual
Gentoo Linux
Gentoo
 cpe:/o:gentoo:linux:- —
SolarWinds Security Event Manager <2024.2
SolarWinds / Security Event Manager
 <2024.2
PaloAlto Networks PAN-OS
PaloAlto Networks
 cpe:/o:paloaltonetworks:pan-os:- —
EMC Avamar
EMC
 cpe:/a:emc:avamar:- —
Debian Linux
Debian
 cpe:/o:debian:debian_linux:- —
SUSE Linux
SUSE
 cpe:/o:suse:suse_linux:- —
Ubuntu Linux
Ubuntu
 cpe:/o:canonical:ubuntu_linux:- —
F5 BIG-IP
F5
 cpe:/a:f5:big-ip:- —
References
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": "OpenSSH ist eine Open Source Implementierung des Secure Shell Protokolls.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in OpenSSH ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX\n- Windows",
        "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-2024-0872 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2019/wid-sec-w-2024-0872.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-0872 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0872"
      },
      {
        "category": "external",
        "summary": "NATIONAL VULNERABILITY DATABASE vom 2019-01-10",
        "url": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-20685"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2019-9EB0AE6296 vom 2019-01-15",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2019-9eb0ae6296"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2019-F6FF819834 vom 2019-01-15",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2019-f6ff819834"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2019:0126-1 vom 2019-01-18",
        "url": "https://www.suse.com/support/update/announcement/2019/suse-su-20190126-1.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2019:0125-1 vom 2019-01-18",
        "url": "https://www.suse.com/support/update/announcement/2019/suse-su-20190125-1.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2019:13931-1 vom 2019-01-20",
        "url": "https://www.suse.com/support/update/announcement/2019/suse-su-201913931-1.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2019:0132-1 vom 2019-01-22",
        "url": "https://www.suse.com/support/update/announcement/2019/suse-su-20190132-1.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-3885-1 vom 2019-02-08",
        "url": "https://usn.ubuntu.com/3885-1/"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-4387 vom 2019-02-10",
        "url": "https://www.debian.org/security/2019/dsa-4387"
      },
      {
        "category": "external",
        "summary": "Arch Linux Security Advisory ASA-201904-11 vom 2019-04-24",
        "url": "https://security.archlinux.org/ASA-201904-11"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2019:0125-2 vom 2019-04-29",
        "url": "https://www.suse.com/support/update/announcement/2019/suse-su-20190125-2.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2019:3702 vom 2019-11-05",
        "url": "https://access.redhat.com/errata/RHSA-2019:3702"
      },
      {
        "category": "external",
        "summary": "PaloAlto Security Advisories",
        "url": "https://security.paloaltonetworks.com/PAN-SA-2020-0002"
      },
      {
        "category": "external",
        "summary": "F5 Security Advisory K11315080 vom 2020-04-22",
        "url": "https://support.f5.com/csp/article/K11315080"
      },
      {
        "category": "external",
        "summary": "GENTOO Security Advisory GLSA-202007-53 vom 2020-07-28",
        "url": "https://security.gentoo.org/glsa/202007-53"
      },
      {
        "category": "external",
        "summary": "HPE Security Bulletin",
        "url": "https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbux04025en_us"
      },
      {
        "category": "external",
        "summary": "SEM 2024.2 release notes vom 2024-04-17",
        "url": "https://documentation.solarwinds.com/en/success_center/sem/content/release_notes/sem_2024-2_release_notes.htm"
      },
      {
        "category": "external",
        "summary": "### vom 2024-04-17",
        "url": "https://documentation.solarwinds.com/en/success_center/sem/content/release_notes/sem_2024-2_release_notes.htm"
      },
      {
        "category": "external",
        "summary": "Dell Security Advisory DSA-2024-198 vom 2024-05-08",
        "url": "https://www.dell.com/support/kbdoc/000224827/dsa-2024-="
      }
    ],
    "source_lang": "en-US",
    "title": "OpenSSH: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2024-05-07T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T18:07:41.112+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2024-0872",
      "initial_release_date": "2019-01-10T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2019-01-10T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2019-01-14T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora aufgenommen"
        },
        {
          "date": "2019-01-20T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2019-01-21T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2019-02-07T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2019-02-10T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2019-04-24T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Arch Linux aufgenommen"
        },
        {
          "date": "2019-04-29T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2019-11-05T23:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2020-04-08T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Palo Alto Networks aufgenommen"
        },
        {
          "date": "2020-04-22T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von F5 aufgenommen"
        },
        {
          "date": "2020-07-28T22:00:00.000+00:00",
          "number": "12",
          "summary": "Neue Updates von GENTOO aufgenommen"
        },
        {
          "date": "2020-08-09T22:00:00.000+00:00",
          "number": "13",
          "summary": "Neue Updates von HP aufgenommen"
        },
        {
          "date": "2024-04-16T22:00:00.000+00:00",
          "number": "14",
          "summary": "Neue Updates aufgenommen"
        },
        {
          "date": "2024-05-07T22:00:00.000+00:00",
          "number": "15",
          "summary": "Neue Updates von Dell aufgenommen"
        }
      ],
      "status": "final",
      "version": "15"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "virtual",
                "product": {
                  "name": "Dell NetWorker virtual",
                  "product_id": "T034583",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:dell:networker:virtual"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "NetWorker"
          }
        ],
        "category": "vendor",
        "name": "Dell"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "EMC Avamar",
            "product": {
              "name": "EMC Avamar",
              "product_id": "T014381",
              "product_identification_helper": {
                "cpe": "cpe:/a:emc:avamar:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "EMC"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "F5 BIG-IP",
            "product": {
              "name": "F5 BIG-IP",
              "product_id": "T001663",
              "product_identification_helper": {
                "cpe": "cpe:/a:f5:big-ip:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "F5"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "HPE HP-UX",
            "product": {
              "name": "HPE HP-UX",
              "product_id": "4871",
              "product_identification_helper": {
                "cpe": "cpe:/o:hp:hp-ux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "HPE"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Arch Linux",
            "product": {
              "name": "Open Source Arch Linux",
              "product_id": "T013312",
              "product_identification_helper": {
                "cpe": "cpe:/o:archlinux:archlinux:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "7.9",
                "product": {
                  "name": "Open Source OpenSSH 7.9",
                  "product_id": "8223",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openbsd:openssh:-"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "OpenSSH"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "PaloAlto Networks PAN-OS",
            "product": {
              "name": "PaloAlto Networks PAN-OS",
              "product_id": "T012790",
              "product_identification_helper": {
                "cpe": "cpe:/o:paloaltonetworks:pan-os:-"
              }
            }
          }
        ],
        "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"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2024.2",
                "product": {
                  "name": "SolarWinds Security Event Manager \u003c2024.2",
                  "product_id": "T034244"
                }
              }
            ],
            "category": "product_name",
            "name": "Security Event Manager"
          }
        ],
        "category": "vendor",
        "name": "SolarWinds"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-20685",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine nicht n\u00e4her beschriebene Schwachstelle in OpenSSH. Die Schwachstelle befindet sich in SCP Client in [scp.c]. Ein Angreifer kann diese nutzen und durch \u00dcbermittlung des Dateinamens \".\" oder eines leeren Dateinamens Zugriffsbeschr\u00e4nkungen umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "8223",
          "67646",
          "4871",
          "T013312",
          "T034583",
          "T012167",
          "T034244",
          "T012790",
          "T014381",
          "2951",
          "T002207",
          "T000126",
          "T001663"
        ]
      },
      "release_date": "2019-01-10T23:00:00.000+00:00",
      "title": "CVE-2018-20685"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.