{"schemaVersion":3,"id":"CVE-2020-15632","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-842 3.13B05 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of HNAP GetCAPTCHAsetting requests. The issue results from the lack of proper handling of sessions. An attacker can leverage this vulnerability to execute arbitrary code in the context of the device. Was ZDI-CAN-10083.","dates":{"published":"2020-07-23T20:45:18.000Z","modified":"2024-08-04T13:22:30.056Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"CVE.org","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":8.8,"severity":"high","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5.8,"severity":"medium","vector":"AV:A/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.03472,"percentile":0.8895,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.15300000000000036,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.03319},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.03472,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.03472,"percentile":0.8895}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03319,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.03472,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.03472,"percentile":0.8895}]},"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-303","name":"Incorrect Implementation of Authentication Algorithm","description":"The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/303.html"}],"affected":[{"vendor":"d-link","product":"dir-842","name":"DIR-842","label":"dir-842","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"3.13B05","noFixRecorded":false,"fixedIn":null}],"versionsText":"3.13B05","eol":null,"hubHref":"/vendor/d-link/dir-842"},{"vendor":"dlink","product":"dir-842_firmware","name":"dir-842 firmware","label":"dir-842_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"≤ 3.13b09","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 3.13b09","eol":null,"hubHref":"/vendor/dlink/dir-842"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-20-880/","label":"www.zerodayinitiative.com/advisories/ZDI-20-880/","hostname":"www.zerodayinitiative.com","tags":["X Refsource MISC","Third Party Advisory","VDB Entry"]},{"url":"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10184","label":"supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10184","hostname":"supportannouncement.us.dlink.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-07-23T20:45:18.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T13:22:30.056Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T00:31:58.727Z","stale":false,"partial":false}}