ncsc-2025-0101
Vulnerability from csaf_ncscnl
Published
2025-04-01 07:47
Modified
2025-04-07 14:03
Summary
Kwetsbaarheid verholpen in CrushFTP

Notes

The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten
CrushFTP heeft een kwetsbaarheid verholpen in versies 10.0.0 tot 10.8.3 en 11.0.0 tot 11.3.0.
Interpretaties
De kwetsbaarheid stelt een kwaadwillende in staat om ongeauthenticeerde externe toegang te verkrijgen via HTTP-verzoeken, wat kan leiden tot ongeautoriseerde toegang. Systemen die gebruik maken van de DMZ Proxy instance van CrushFTP zijn niet kwetsbaar. Onderzoekers hebben de patch reverse-engineered en hebben een PoC kunnen bouwen waarmee de kwetsbaarheid kan worden aangetoond. Het NCSC ontvangt meldingen dat kwaadwillenden actief scannen naar kwetsbare systemen en dat compromittaties worden waargenomen. Eigenaren van een systeem dat gebruik maakt van CrushFTP kunnen detecteren of eventuele compromittatie heeft plaatsgevonden, door in de `session_logs` directory te controleren of externe toegang is verkregen op standaard accounts als `crushadmin` of `anonymous`. Logregels als voorbeeld zijn: ``` SESSION|03/27/2025 12:41:24.636|[HTTP:250_22299:crushadmin:REDACTED_ATTACKER_IP] WROTE: *230 Password OK. Connected.* SESSION|03/27/2025 12:41:24.636|[HTTP:250_22299:anonymous:REDACTED_ATTACKER_IP] WROTE: *230 Password OK. Connected.* ``` N.B.: Tijdens de initiële berichtenstroom was voor deze kwetsbaarheid nog geen CVE-id toegekend. Een niet-betrokken derde partij heeft een tijdelijk CVE-id toegekend in afwachting van de definitieve versie. Deze kwetsbaarheid is daarom ook onder CVE-2025-2825 bekend.
Oplossingen
CrushFTP heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans
medium
Schade
high
CWE-287
Improper Authentication


To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "CrushFTP heeft een kwetsbaarheid verholpen in versies 10.0.0 tot 10.8.3 en 11.0.0 tot 11.3.0.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "De kwetsbaarheid stelt een kwaadwillende in staat om ongeauthenticeerde externe toegang te verkrijgen via HTTP-verzoeken, wat kan leiden tot ongeautoriseerde toegang. Systemen die gebruik maken van de DMZ Proxy instance van CrushFTP zijn niet kwetsbaar.\n\nOnderzoekers hebben de patch reverse-engineered en hebben een PoC kunnen bouwen waarmee de kwetsbaarheid kan worden aangetoond.\n\nHet NCSC ontvangt meldingen dat kwaadwillenden actief scannen naar kwetsbare systemen en dat compromittaties worden waargenomen.\n\nEigenaren van een systeem dat gebruik maakt van CrushFTP kunnen detecteren of eventuele compromittatie heeft plaatsgevonden, door in de `session_logs` directory te controleren of externe toegang is verkregen op standaard accounts als `crushadmin` of `anonymous`. Logregels als voorbeeld zijn:\n\n```\nSESSION|03/27/2025 12:41:24.636|[HTTP:250_22299:crushadmin:REDACTED_ATTACKER_IP] WROTE: *230 Password OK.  Connected.*\n\nSESSION|03/27/2025 12:41:24.636|[HTTP:250_22299:anonymous:REDACTED_ATTACKER_IP] WROTE: *230 Password OK.  Connected.*\n```\n\nN.B.: Tijdens de initi\u00eble berichtenstroom was voor deze kwetsbaarheid nog geen CVE-id toegekend. Een niet-betrokken derde partij heeft een tijdelijk CVE-id toegekend in afwachting van de definitieve versie. Deze kwetsbaarheid is daarom ook onder CVE-2025-2825 bekend.",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "CrushFTP heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie bijgevoegde referenties voor meer informatie.",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Authentication",
        "title": "CWE-287"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "references": [
      {
        "category": "external",
        "summary": "Reference - certbundde; cveprojectv5; nvd",
        "url": "https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update"
      },
      {
        "category": "external",
        "summary": "Reference - ncscclear",
        "url": "https://www.crushftp.com/version10.html"
      }
    ],
    "title": "Kwetsbaarheid verholpen in CrushFTP",
    "tracking": {
      "current_release_date": "2025-04-07T14:03:59.372671Z",
      "generator": {
        "date": "2025-02-25T15:15:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.0"
        }
      },
      "id": "NCSC-2025-0101",
      "initial_release_date": "2025-04-01T07:47:50.425419Z",
      "revision_history": [
        {
          "date": "2025-04-01T07:47:50.425419Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        },
        {
          "date": "2025-04-07T14:03:59.372671Z",
          "number": "1.0.1",
          "summary": "CVE-id vervangen voor officiele CVE-id voor deze kwetsbaarheid.\n\nOnderzoekers hebben PoC gepubliceerd."
        }
      ],
      "status": "final",
      "version": "1.0.1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:semver/10.0.0|\u003c10.8.4",
                "product": {
                  "name": "vers:semver/10.0.0|\u003c10.8.4",
                  "product_id": "CSAFPID-2566677"
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:semver/11.0.0|\u003c11.3.1",
                "product": {
                  "name": "vers:semver/11.0.0|\u003c11.3.1",
                  "product_id": "CSAFPID-2566676"
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:unknown/\u003cv11.3.1",
                "product": {
                  "name": "vers:unknown/\u003cv11.3.1",
                  "product_id": "CSAFPID-2570442"
                }
              },
              {
                "category": "product_version_range",
                "name": "vers:unknown/v11",
                "product": {
                  "name": "vers:unknown/v11",
                  "product_id": "CSAFPID-2570443",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:crushftp:crushftp:v11"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CrushFTP"
          }
        ],
        "category": "vendor",
        "name": "CrushFTP"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "vers:unknown/10.3",
                    "product": {
                      "name": "vers:unknown/10.3",
                      "product_id": "CSAFPID-2577456"
                    }
                  },
                  {
                    "category": "product_version_range",
                    "name": "vers:unknown/10.5.5",
                    "product": {
                      "name": "vers:unknown/10.5.5",
                      "product_id": "CSAFPID-2577459"
                    }
                  },
                  {
                    "category": "product_version_range",
                    "name": "vers:unknown/10.6.1",
                    "product": {
                      "name": "vers:unknown/10.6.1",
                      "product_id": "CSAFPID-2577455"
                    }
                  },
                  {
                    "category": "product_version_range",
                    "name": "vers:unknown/\u003e=10.0.0|\u003c10.8.4",
                    "product": {
                      "name": "vers:unknown/\u003e=10.0.0|\u003c10.8.4",
                      "product_id": "CSAFPID-2577457"
                    }
                  },
                  {
                    "category": "product_version_range",
                    "name": "vers:unknown/\u003e=11.0.0|\u003c11.3.1",
                    "product": {
                      "name": "vers:unknown/\u003e=11.0.0|\u003c11.3.1",
                      "product_id": "CSAFPID-2577458"
                    }
                  }
                ],
                "category": "product_name",
                "name": "Crushftp"
              }
            ],
            "category": "product_family",
            "name": "Crushftp"
          }
        ],
        "category": "vendor",
        "name": "Crushftp"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-31161",
      "cwe": {
        "id": "CWE-305",
        "name": "Authentication Bypass by Primary Weakness"
      },
      "notes": [
        {
          "category": "other",
          "text": "Authentication Bypass by Primary Weakness",
          "title": "CWE-305"
        },
        {
          "category": "general",
          "text": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
          "title": "CVSSV4"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-2566677",
          "CSAFPID-2566676",
          "CSAFPID-2570442",
          "CSAFPID-2570443",
          "CSAFPID-2577456",
          "CSAFPID-2577459",
          "CSAFPID-2577455",
          "CSAFPID-2577457",
          "CSAFPID-2577458"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2025-31161",
          "url": "https://api.ncsc.nl/velma/v1/vulnerabilities/2025/CVE-2025-31161.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-2566677",
            "CSAFPID-2566676",
            "CSAFPID-2570442",
            "CSAFPID-2570443",
            "CSAFPID-2577456",
            "CSAFPID-2577459",
            "CSAFPID-2577455",
            "CSAFPID-2577457",
            "CSAFPID-2577458"
          ]
        }
      ],
      "title": "CVE-2025-31161"
    }
  ]
}


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