Vulnerability-Lookup

VAR-200107-0127

Vulnerability from variot - Updated: 2025-04-03 19:59

Information disclosure vulnerability in Microsoft Windows 2000 telnet service allows remote attackers to determine the existence of user accounts such as Guest, or log in to the server without specifying the domain name, via a malformed userid. Microsoft Windows Is Telnet If you use a legitimate user account with a special character string added and there is a flaw in the implementation of the domain authentication operation, you will not be asked for domain authentication when logging in to the domain to which the account belongs. Telnet The service is vulnerable to enumerating server domains and all domains trusted by user accounts instead of authentication.There is a possibility of unauthorized login to the system. Once the account is located, the user will have to complete the authentication process. At this point brute force attacks can be used in an attempt to gain access to the domain

Show details on source website

JSON

To clipboard

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-200107-0127",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": null,
        "scope": null,
        "trust": 1.6,
        "vendor": "microsoft",
        "version": null
      },
      {
        "model": "windows 2000",
        "scope": null,
        "trust": 1.4,
        "vendor": "microsoft",
        "version": null
      },
      {
        "model": "windows 2000",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "microsoft",
        "version": "*"
      },
      {
        "model": "windows server sp2",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows server sp1",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows server",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows professional sp2",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows professional sp1",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows professional",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows datacenter server sp2",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows datacenter server sp1",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows datacenter server",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows advanced server sp2",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows advanced server sp1",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "windows advanced server",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "2000"
      },
      {
        "model": "iis",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "5.0"
      },
      {
        "model": "iis",
        "scope": "eq",
        "trust": 0.3,
        "vendor": "microsoft",
        "version": "4.0"
      }
    ],
    "sources": [
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "configurations": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/configurations#",
      "children": {
        "@container": "@list"
      },
      "cpe_match": {
        "@container": "@list"
      },
      "data": {
        "@container": "@list"
      },
      "nodes": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "cpe_match": [
              {
                "cpe22Uri": "cpe:/o:microsoft:windows_2000",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      }
    ]
  },
  "credits": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/credits#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Posted in a Microsoft Security Bulletin MS01-031 on June 7, 2001.",
    "sources": [
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      }
    ],
    "trust": 0.9
  },
  "cve": "CVE-2001-0347",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 10.0,
            "id": "CVE-2001-0347",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "severity": "HIGH",
            "trust": 1.8,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2001-0347",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "CARNEGIE MELLON",
            "id": "VU#137544",
            "trust": 0.8,
            "value": "10.13"
          },
          {
            "author": "CARNEGIE MELLON",
            "id": "VU#573155",
            "trust": 0.8,
            "value": "10.13"
          },
          {
            "author": "NVD",
            "id": "CVE-2001-0347",
            "trust": 0.8,
            "value": "High"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-200107-161",
            "trust": 0.6,
            "value": "HIGH"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Information disclosure vulnerability in Microsoft Windows 2000 telnet service allows remote attackers to determine the existence of user accounts such as Guest, or log in to the server without specifying the domain name, via a malformed userid. Microsoft Windows Is Telnet If you use a legitimate user account with a special character string added and there is a flaw in the implementation of the domain authentication operation, you will not be asked for domain authentication when logging in to the domain to which the account belongs. Telnet The service is vulnerable to enumerating server domains and all domains trusted by user accounts instead of authentication.There is a possibility of unauthorized login to the system. Once the account is located, the user will have to complete the authentication process. At this point brute force attacks can be used in an attempt to gain access to the domain",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      },
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      }
    ],
    "trust": 3.6
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "BID",
        "id": "2847",
        "trust": 3.5
      },
      {
        "db": "NVD",
        "id": "CVE-2001-0347",
        "trust": 2.4
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155",
        "trust": 1.6
      },
      {
        "db": "CERT/CC",
        "id": "VU#137544",
        "trust": 1.6
      },
      {
        "db": "OSVDB",
        "id": "5686",
        "trust": 1.6
      },
      {
        "db": "BID",
        "id": "2719",
        "trust": 1.1
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088",
        "trust": 0.8
      },
      {
        "db": "XF",
        "id": "2",
        "trust": 0.6
      },
      {
        "db": "XF",
        "id": "6665",
        "trust": 0.6
      },
      {
        "db": "MS",
        "id": "MS01-031",
        "trust": 0.6
      },
      {
        "db": "CIAC",
        "id": "L-092",
        "trust": 0.6
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161",
        "trust": 0.6
      }
    ],
    "sources": [
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "id": "VAR-200107-0127",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
        "id": null
      }
    ],
    "trust": 1.0
  },
  "last_update_date": "2025-04-03T19:59:08.163000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "MS01-031",
        "trust": 0.8,
        "url": "http://www.microsoft.com/technet/security/bulletin/MS01-031.asp"
      },
      {
        "title": "MS01-031",
        "trust": 0.8,
        "url": "http://www.microsoft.com/japan/technet/security/bulletin/MS01-031.mspx"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "NVD-CWE-Other",
        "trust": 1.0
      }
    ],
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 3.2,
        "url": "http://www.securityfocus.com/bid/2847"
      },
      {
        "trust": 1.7,
        "url": "http://www.microsoft.com/technet/security/bulletin/ms01-031.asp"
      },
      {
        "trust": 1.6,
        "url": "http://www.osvdb.org/5686"
      },
      {
        "trust": 1.6,
        "url": "http://www.ciac.org/ciac/bulletins/l-092.shtml"
      },
      {
        "trust": 1.0,
        "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-031"
      },
      {
        "trust": 1.0,
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6665"
      },
      {
        "trust": 0.8,
        "url": "http://www.kb.cert.org/vuls/id/573155"
      },
      {
        "trust": 0.8,
        "url": "http://www.microsoft.com/technet/security/bulletin/ms01-026.asp"
      },
      {
        "trust": 0.8,
        "url": "http://www.securityfocus.com/bid/2719"
      },
      {
        "trust": 0.8,
        "url": "http://www.kb.cert.org/vuls/id/137544"
      },
      {
        "trust": 0.8,
        "url": "http://www.microsoft.com/downloads/release.asp?releaseid=30508"
      },
      {
        "trust": 0.8,
        "url": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2001-0347"
      },
      {
        "trust": 0.8,
        "url": "http://nvd.nist.gov/nvd.cfm?cvename=cve-2001-0347"
      },
      {
        "trust": 0.6,
        "url": "http://xforce.iss.net/static/6665.php"
      },
      {
        "trust": 0.3,
        "url": "http://www.microsoft.com/technet/security/bulletin/ms02-026.asp"
      }
    ],
    "sources": [
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2001-09-18T00:00:00",
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "date": "2001-09-18T00:00:00",
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "date": "2001-06-07T00:00:00",
        "db": "BID",
        "id": "2847"
      },
      {
        "date": "2001-05-14T00:00:00",
        "db": "BID",
        "id": "2719"
      },
      {
        "date": "2007-04-01T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "date": "2001-07-21T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "date": "2001-07-21T04:00:00",
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2001-09-18T00:00:00",
        "db": "CERT/CC",
        "id": "VU#137544"
      },
      {
        "date": "2001-09-18T00:00:00",
        "db": "CERT/CC",
        "id": "VU#573155"
      },
      {
        "date": "2001-06-07T00:00:00",
        "db": "BID",
        "id": "2847"
      },
      {
        "date": "2001-05-14T00:00:00",
        "db": "BID",
        "id": "2719"
      },
      {
        "date": "2007-04-01T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2001-000088"
      },
      {
        "date": "2005-05-02T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-200107-161"
      },
      {
        "date": "2025-04-03T01:03:51.193000",
        "db": "NVD",
        "id": "CVE-2001-0347"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "network",
    "sources": [
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Microsoft IIS FTP service searches all trusted domains for user accounts",
    "sources": [
      {
        "db": "CERT/CC",
        "id": "VU#137544"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Input Validation Error",
    "sources": [
      {
        "db": "BID",
        "id": "2847"
      },
      {
        "db": "BID",
        "id": "2719"
      }
    ],
    "trust": 0.6
  }
}

CVE-2001-0347 (GCVE-0-2001-0347)

Vulnerability from cvelistv5 – Published: 2001-09-18 04:00 – Updated: 2024-08-08 04:14

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2175 records in the last 180 days details

References

5 references

URL	Tags
https://docs.microsoft.com/en-us/security-updates…	vendor-advisoryx_refsource_MS
http://www.ciac.org/ciac/bulletins/l-092.shtml	third-party-advisorygovernment-resourcex_refsource_CIAC
http://www.osvdb.org/5686	vdb-entryx_refsource_OSVDB
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF
http://www.securityfocus.com/bid/2847	vdb-entryx_refsource_BID

Date Public

2001-06-07 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-08T04:14:07.411Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "MS01-031",
            "tags": [
              "vendor-advisory",
              "x_refsource_MS",
              "x_transferred"
            ],
            "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-031"
          },
          {
            "name": "L-092",
            "tags": [
              "third-party-advisory",
              "government-resource",
              "x_refsource_CIAC",
              "x_transferred"
            ],
            "url": "http://www.ciac.org/ciac/bulletins/l-092.shtml"
          },
          {
            "name": "5686",
            "tags": [
              "vdb-entry",
              "x_refsource_OSVDB",
              "x_transferred"
            ],
            "url": "http://www.osvdb.org/5686"
          },
          {
            "name": "win2k-telnet-domain-authentication(6665)",
            "tags": [
              "vdb-entry",
              "x_refsource_XF",
              "x_transferred"
            ],
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6665"
          },
          {
            "name": "2847",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/2847"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2001-06-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Information disclosure vulnerability in Microsoft Windows 2000 telnet service allows remote attackers to determine the existence of user accounts such as Guest, or log in to the server without specifying the domain name, via a malformed userid."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2004-09-02T09:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "MS01-031",
          "tags": [
            "vendor-advisory",
            "x_refsource_MS"
          ],
          "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-031"
        },
        {
          "name": "L-092",
          "tags": [
            "third-party-advisory",
            "government-resource",
            "x_refsource_CIAC"
          ],
          "url": "http://www.ciac.org/ciac/bulletins/l-092.shtml"
        },
        {
          "name": "5686",
          "tags": [
            "vdb-entry",
            "x_refsource_OSVDB"
          ],
          "url": "http://www.osvdb.org/5686"
        },
        {
          "name": "win2k-telnet-domain-authentication(6665)",
          "tags": [
            "vdb-entry",
            "x_refsource_XF"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6665"
        },
        {
          "name": "2847",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/2847"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2001-0347",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Information disclosure vulnerability in Microsoft Windows 2000 telnet service allows remote attackers to determine the existence of user accounts such as Guest, or log in to the server without specifying the domain name, via a malformed userid."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "MS01-031",
              "refsource": "MS",
              "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-031"
            },
            {
              "name": "L-092",
              "refsource": "CIAC",
              "url": "http://www.ciac.org/ciac/bulletins/l-092.shtml"
            },
            {
              "name": "5686",
              "refsource": "OSVDB",
              "url": "http://www.osvdb.org/5686"
            },
            {
              "name": "win2k-telnet-domain-authentication(6665)",
              "refsource": "XF",
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/6665"
            },
            {
              "name": "2847",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/2847"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2001-0347",
    "datePublished": "2001-09-18T04:00:00.000Z",
    "dateReserved": "2001-05-16T00:00:00.000Z",
    "dateUpdated": "2024-08-08T04:14:07.411Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

Order 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.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted