csaf_certbund - WID-SEC-W-2024-1514

WID-SEC-W-2024-1514

Vulnerability from csaf_certbund

Published

2024-07-03 22:00

Modified

2024-07-23 22:00

Summary

OpenSSH: Schwachstelle ermöglicht Offenlegung von Informationen

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, anonymer Angreifer kann eine Schwachstelle in OpenSSH ausnutzen, um Informationen offenzulegen.

Betroffene Betriebssysteme

- Linux - Windows

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "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, anonymer Angreifer kann eine Schwachstelle in OpenSSH ausnutzen, um Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\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-2024-1514 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-1514.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-1514 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-1514"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker vom 2024-07-03",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2295273"
      },
      {
        "category": "external",
        "summary": "OSS Mailing List vom 2024-07-03",
        "url": "https://seclists.org/oss-sec/2024/q3/20"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6887-1 vom 2024-07-09",
        "url": "https://ubuntu.com/security/notices/USN-6887-1"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2024:2393-1 vom 2024-07-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2024-July/018919.html"
      },
      {
        "category": "external",
        "summary": "Meinberg Security Advisory vom 2024-07-22",
        "url": "https://www.meinberg.de/german/news/meinberg-security-advisory-mbgsa-2024-04-lantime-firmware-v7-08-014.htm"
      }
    ],
    "source_lang": "en-US",
    "title": "OpenSSH: Schwachstelle erm\u00f6glicht Offenlegung von Informationen",
    "tracking": {
      "current_release_date": "2024-07-23T22:00:00.000+00:00",
      "generator": {
        "date": "2024-07-24T09:07:51.685+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2024-1514",
      "initial_release_date": "2024-07-03T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-07-03T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2024-07-09T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2024-07-10T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2024-07-23T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Meinberg aufgenommen"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cV7.08.014",
                "product": {
                  "name": "Meinberg LANTIME \u003cV7.08.014",
                  "product_id": "T036396",
                  "product_identification_helper": {
                    "cpe": "cpe:/h:meinberg:lantime:v7.08.014"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "LANTIME"
          }
        ],
        "category": "vendor",
        "name": "Meinberg"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c9.8",
                "product": {
                  "name": "Open Source OpenSSH \u003c9.8",
                  "product_id": "T035806",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:openbsd:openssh:9.8"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "OpenSSH"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "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": [
          {
            "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-2024-39894",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in OpenSSH aufgrund eines Logikfehlers in der SSH ObscureKeystrokeTiming-Funktion. Diese erm\u00f6glicht es zu erkennen, welche Netzwerkpakete echte Tastenanschl\u00e4ge enthielten. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen. Eine erfolgreiche Ausnutzung erfordert eine Benutzerinteraktion."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207",
          "T000126",
          "T036396"
        ]
      },
      "release_date": "2024-07-03T22:00:00Z",
      "title": "CVE-2024-39894"
    }
  ]
}

cve-2024-39894

Vulnerability from cvelistv5

Published

2024-07-02 00:00

Modified

2024-09-11 15:12

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.

References

▼	URL	Tags
	https://www.openssh.com/txt/release-9.8
	https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html
	https://www.openwall.com/lists/oss-security/2024/07/02/1
	http://www.openwall.com/lists/oss-security/2024/07/03/6	mailing-list
	https://security.netapp.com/advisory/ntap-20240712-0004/
	http://www.openwall.com/lists/oss-security/2024/07/23/4	mailing-list
	http://www.openwall.com/lists/oss-security/2024/07/23/6	mailing-list
	http://www.openwall.com/lists/oss-security/2024/07/28/3	mailing-list
	https://crzphil.github.io/posts/ssh-obfuscation-bypass/
	https://news.ycombinator.com/item?id=41508530

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:openbsd:openssh:9.5:-:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "openssh",
            "vendor": "openbsd",
            "versions": [
              {
                "lessThanOrEqual": "9.7",
                "status": "affected",
                "version": "9.5",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-39894",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-03T13:15:38.073610Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-367",
                "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-03T13:15:54.538Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:33:11.961Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openssh.com/txt/release-9.8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2024/07/02/1"
          },
          {
            "name": "[oss-security] 20240703 Re: Announce: OpenSSH 9.8 released",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/07/03/6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240712-0004/"
          },
          {
            "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/07/23/4"
          },
          {
            "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/07/23/6"
          },
          {
            "name": "[oss-security] 20240728 Re: Announce: OpenSSH 9.8 released",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/07/28/3"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-09-11T15:12:12.186999",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.openssh.com/txt/release-9.8"
        },
        {
          "url": "https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2024/07/02/1"
        },
        {
          "name": "[oss-security] 20240703 Re: Announce: OpenSSH 9.8 released",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/07/03/6"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240712-0004/"
        },
        {
          "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/07/23/4"
        },
        {
          "name": "[oss-security] 20240723 Re: linux-distros application for CentOS Project\u0027s Hyperscale SIG",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/07/23/6"
        },
        {
          "name": "[oss-security] 20240728 Re: Announce: OpenSSH 9.8 released",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/07/28/3"
        },
        {
          "url": "https://crzphil.github.io/posts/ssh-obfuscation-bypass/"
        },
        {
          "url": "https://news.ycombinator.com/item?id=41508530"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-39894",
    "datePublished": "2024-07-02T00:00:00",
    "dateReserved": "2024-07-02T00:00:00",
    "dateUpdated": "2024-09-11T15:12:12.186999",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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