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CVE-2001-0183

Estado: ModificadaAlta (7.5)—💥 Exploit

ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Freebsd — Freebsd

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2001-0183",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2001-03-26T05:00:00.000",
  "references": [
    {
      "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/1743",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/2293",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998",
      "source": "cve@mitre.org"
    },
    {
      "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:08.ipfw.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ciac.org/ciac/bulletins/l-029.shtml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.osvdb.org/1743",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.security-express.com/archives/bugtraq/2001-01/0424.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/2293",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/5998",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "ipfw and ip6fw in FreeBSD 4.2 and earlier allows remote attackers to bypass access restrictions by setting the ECE flag in a TCP packet, which makes the packet appear to be part of an established connection."
    }
  ],
  "lastModified": "2026-06-16T21:53:49.973",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EE38C50A-81FE-412E-9717-3672FAE6A6F4"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "263F3734-7076-4EA8-B4C0-F37CFC4E979E"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C3518628-08E5-4AD7-AAF6-A4E38F1CDE2C"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B982342C-1981-4C55-8044-AFE4D87623DF"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "47E02BE6-4800-4940-B269-385B66AC5077"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:3.5.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C283AD7-1C58-4CE8-A6CD-502FFE0B18BB"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D0A585A1-FF82-418F-90F8-072458DB7816"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.0:alpha:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E3F7EB61-55A5-4776-B0E7-3508920A6CEA"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AE31DFF8-06AB-489D-A0C5-509C090283B5"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.1.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3BE1E3D8-2BB1-4FFA-9BC9-7AF347D26190"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:4.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DF49BF03-C25E-4737-84D5-892895C86C58"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}