{"schemaVersion":3,"id":"CVE-2018-6517","aliases":["GHSA-573x-jhqh-jg36"],"status":"published","duplicateOf":null,"title":null,"description":"Prior to version 0.3.0, chloride's use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user's known_hosts file without confirmation. In version 0.3.0 this is updated so that the user's known_hosts file is not updated by chloride.","dates":{"published":"2019-03-17T19:14:43.000Z","modified":"2024-08-05T06:10:10.019Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Rubygems","score":7.5,"severity":"high","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","exploitability":10,"impact":6,"computed":true}]},"epss":{"probability":0.00893,"percentile":0.58789,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00893},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00866,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00893,"percentile":0.58789}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00866,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00893,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00893,"percentile":0.58789}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-295","name":"Improper Certificate Validation","description":"The product does not validate, or incorrectly validates, a certificate.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/295.html"}],"affected":[{"vendor":"RubyGems","product":"chloride","name":"chloride","label":"chloride","ecosystem":"RubyGems","cpePart":null,"purl":"pkg:gem/chloride","purlType":"gem","versions":[{"text":"< 0.3.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.3.0","eol":null,"hubHref":null},{"vendor":"puppet","product":"chloride","name":"chloride","label":"chloride","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"prior to 0.3.0","noFixRecorded":false,"fixedIn":null},{"text":"< 0.3.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"prior to 0.3.0 | < 0.3.0","eol":null,"hubHref":"/vendor/puppet/chloride"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://puppet.com/security/cve/CVE-2018-6517","label":"puppet.com/security/cve/CVE-2018-6517","hostname":"puppet.com","tags":["X Refsource CONFIRM","Third Party Advisory","WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-6517","label":"nvd.nist.gov/vuln/detail/CVE-2018-6517","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/chloride/CVE-2018-6517.yml","label":"github.com/rubysec/ruby-advisory-db/blob/master/gems/chloride/CVE-2018-6517.yml","hostname":"github.com","tags":["WEB"]},{"url":"https://web.archive.org/web/20201001014342/https://puppet.com/security/cve/CVE-2018-6517","label":"web.archive.org/web/20201001014342/https://puppet.com/security/cve/CVE-2018-6517","hostname":"web.archive.org","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-03-17T19:14:43.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T06:10:10.019Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T15:54:23.785Z","stale":false,"partial":false}}