{"id":"CVE-2021-3660","details":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","modified":"2026-08-07T14:49:37.909223Z","published":"2022-03-10T17:42:55.647Z","related":["ALSA-2022:2008"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"}],"source":"CPE_STRING","vendor_product":"redhat:enterprise_linux"}]},"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1980688"},{"type":"FIX","url":"https://github.com/cockpit-project/cockpit/commit/8d9bc10d8128aae03dfde62fd00075fe492ead10"},{"type":"FIX","url":"https://github.com/cockpit-project/cockpit/issues/16122"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cockpit-project/cockpit","events":[{"introduced":"0"},{"fixed":"251926ad966a6a57e992b06c4fccf2f2423f88a8"},{"fixed":"8d9bc10d8128aae03dfde62fd00075fe492ead10"}],"database_specific":{"cpe":"cpe:2.3:a:cockpit-project:cockpit:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"254"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["253","251","252","250","249","248","247","246","245","244.1","244","243","242","241","240","239","238.1","238","237","236","235","234","233.1","233","232","231","230","229","228","227","226","225","224","223","222.1","222","221.1","221","220","219","218","217","216","215","214.1","214","213","212","211","210","209","208","207","206","205.1","205","204","203","202.1","202","201","200","199","197","196","198","195","194","193","192","191","190","189","188","187","186","184","185","183","182","181","180","179","178","177","176","175","174","173","172","171","170","169","168","167","166","165","164","163","162","161","160","159","158","157","156","155","154","153","152","151","150","149","148","147","146","145","144","143","142","141","140","139","138","137","136","135","134","133","132","131","130","129","128","127","126","125","124","123","122","121","120","119","118","0.117","0.116","0.115","0.114","0.113","0.112","0.111","0.110","0.109","0.108","0.107","0.106","0.105","0.104","0.103","0.102","0.101","0.100","0.99","0.98","0.97","0.96-1","0.96","0.95","0.94","0.93","0.92","0.91","0.90","0.89","0.88","0.87","0.86","0.85","0.84","0.83","0.82","0.81","0.80","0.79","0.78","0.77","0.76","0.75","0.74","0.73","0.72","0.71","0.70","0.69","0.68","0.67","0.66","0.65","0.64","0.63","0.62","0.61","0.60","0.59","0.58","0.57","0.56","0.55","0.54","0.53","0.52","0.51","0.50","0.49","0.48","0.47","0.46","0.45","0.44","0.42","0.41","0.40","0.39","0.38","0.37","0.36","0.35","0.34","0.33","0.32","0.31","0.30","0.29","0.28","0.27","0.26","0.25","0.24","0.23","0.22","0.21","0.20","0.19","0.18","0.17","0.16","0.15","0.14","0.13","0.12","0.11","0.10","0.9","0.8","0.7","0.6","0.5","0.4","0.3","0.2"],"database_specific":{"vanir_signatures_modified":"2026-08-07T14:49:37Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["134655402416378279483429680485234518541","292222678174790241311677260487533223928","309271648936713598462387289853482135675","268971167726584180281546125277119645421","133267846151928897689910292218534056527","3397344417416461134128263470272402462","281014394522471031140424059057317025718","144330048431258142360128838096477822215","173555419823742892274023789639976169352","56982047601249035356228339888196003252","86012658027789560600591753589253616155","130140710033837481933422337657713424558"],"threshold":0.9},"id":"CVE-2021-3660-0b2bf10d","signature_type":"Line","signature_version":"v1","source":"https://github.com/cockpit-project/cockpit/commit/8d9bc10d8128aae03dfde62fd00075fe492ead10","target":{"file":"src/common/cockpitwebresponse.c"}},{"source":"https://github.com/cockpit-project/cockpit/commit/8d9bc10d8128aae03dfde62fd00075fe492ead10","target":{"file":"src/common/cockpitwebresponse.c","function":"finish_headers"},"deprecated":false,"digest":{"function_hash":"218541981637196949492337221263490501649","length":1908},"id":"CVE-2021-3660-88da9a07","signature_type":"Function","signature_version":"v1"},{"deprecated":false,"digest":{"function_hash":"64335642523941509145852724743639902650","length":1155},"id":"CVE-2021-3660-d186b283","signature_type":"Function","signature_version":"v1","source":"https://github.com/cockpit-project/cockpit/commit/8d9bc10d8128aae03dfde62fd00075fe492ead10","target":{"file":"src/common/cockpitwebresponse.c","function":"append_header"}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3660.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"}]}