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CVE-1999-0305

Estado: ModificadaMedia (5)—

The system configuration control (sysctl) facility in BSD based operating systems OpenBSD 2.2 and earlier, and FreeBSD 2.2.5 and earlier, does not properly restrict source routed packets even when the (1) dosourceroute or (2) forwarding variables are set, which allows remote attackers to spoof TCP connections.

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).

Tecnologías afectadas (3)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-1999-0305",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "1998-02-01T05:00:00.000",
  "references": [
    {
      "url": "http://www.openbsd.org/advisories/sourceroute.txt",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.osvdb.org/11502",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/736",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.openbsd.org/advisories/sourceroute.txt",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.osvdb.org/11502",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/736",
      "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": "The system configuration control (sysctl) facility in BSD based operating systems OpenBSD 2.2 and earlier, and FreeBSD 2.2.5 and earlier, does not properly restrict source routed packets even when the (1) dosourceroute or (2) forwarding variables are set, which allows remote attackers to spoof TCP connections."
    }
  ],
  "lastModified": "2026-06-16T21:48:06.863",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:bsdi:bsd_os:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CA7932DF-A035-4506-9BF1-C733DC5DD872"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "183667CA-6DF1-4BFB-AE32-9ABF55B7283A"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:2.2.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "314BA420-4C74-4060-8ACE-D7A7C041CF2B"
            },
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "36DF0D51-FCFA-46A3-B834-E80DFA91DFDC"
            },
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:2.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5CB726CF-ADA2-4CDA-9786-1E84AC53740A"
            },
            {
              "criteria": "cpe:2.3:o:openbsd:openbsd:2.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1FC373FC-88AC-4B6D-A289-51881ACD57F7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}