{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2016-1133","sourceIdentifier":"vultures@jpcert.or.jp","published":"2016-01-16T05:59:03.253","lastModified":"2026-06-17T00:41:21.300","vulnStatus":"Modified","cveTags":[],"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."}],"affected":[{"source":"vultures@jpcert.or.jp","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":1.4}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*","versionEndIncluding":"1.6.1","matchCriteriaId":"D9F50A11-3CDF-41AF-9341-E37BE847E584"},{"vulnerable":true,"criteria":"cpe:2.3:a:dena:h2o:1.7.0:beta2:*:*:*:*:*:*","matchCriteriaId":"5428E432-6906-4CFE-BCC2-0A08DB792B7A"}]}]}],"references":[{"url":"http://jvn.jp/en/jp/JVN45928828/index.html","source":"vultures@jpcert.or.jp","tags":["Vendor Advisory"]},{"url":"http://jvndb.jvn.jp/jvndb/JVNDB-2016-000003","source":"vultures@jpcert.or.jp","tags":["Vendor Advisory"]},{"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","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"url":"http://jvndb.jvn.jp/jvndb/JVNDB-2016-000003","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]},{"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"}],"evaluatorComment":"\u003ca href=\"https://cwe.mitre.org/data/definitions/93.html\"\u003eCWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')\u003c/a\u003e"}}