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CVE-2016-1133

Estado: ModificadaBaja (3.7)—

CRLF injection vulnerability in the on_req function in lib/handler/redirect.c in H2O before 1.6.2 and 1.7.x before 1.7.0-beta3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URI.

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 (1)

Dena — H2O

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-1133",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-01-16T05:59:03.253",
  "references": [
    {
      "url": "http://jvn.jp/en/jp/JVN45928828/index.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "http://jvndb.jvn.jp/jvndb/JVNDB-2016-000003",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://github.com/h2o/h2o/issues/682",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://github.com/h2o/h2o/issues/684",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://h2o.examp1e.net/vulnerabilities.html#CVE-2016-1133",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "http://jvn.jp/en/jp/JVN45928828/index.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://jvndb.jvn.jp/jvndb/JVNDB-2016-000003",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/h2o/h2o/issues/682",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/h2o/h2o/issues/684",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://h2o.examp1e.net/vulnerabilities.html#CVE-2016-1133",
      "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": "CRLF injection vulnerability in the on_req function in lib/handler/redirect.c in H2O before 1.6.2 and 1.7.x before 1.7.0-beta3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URI."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de inyección CRLF en la función on_req en lib/handler/redirect.c en H2O en versiones anteriores a 1.6.2 y 1.7.x en versiones anteriores a 1.7.0-beta3 permite a atacantes remotos inyectar cabeceras HTTP arbitrarias y realizar ataques de separación de respuestas HTTP a través de una URI manipulada."
    }
  ],
  "lastModified": "2026-06-17T00:41:21.300",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D9F50A11-3CDF-41AF-9341-E37BE847E584",
              "versionEndIncluding": "1.6.1"
            },
            {
              "criteria": "cpe:2.3:a:dena:h2o:1.7.0:beta2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5428E432-6906-4CFE-BCC2-0A08DB792B7A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "evaluatorComment": "<a href=\"https://cwe.mitre.org/data/definitions/93.html\">CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')</a>",
  "sourceIdentifier": "vultures@jpcert.or.jp"
}