{"id":"CVE-2017-11104","details":"Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a flaw within the TSIG protocol implementation that would allow an attacker with a valid key name and algorithm to bypass TSIG authentication if no additional ACL restrictions are set, because of an improper TSIG validity period check.","modified":"2026-03-15T22:14:25.790942Z","published":"2017-07-08T10:29:00.170Z","related":["openSUSE-SU-2020:1085-1","openSUSE-SU-2020:1086-1","openSUSE-SU-2020:1112-1","openSUSE-SU-2020:1232-1"],"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/99598"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3910"},{"type":"REPORT","url":"https://bugs.debian.org/865678"},{"type":"FIX","url":"http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf"},{"type":"FIX","url":"https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-11104.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"2.4.4"}]},{"events":[{"introduced":"0"},{"last_affected":"2.5.0"}]},{"events":[{"introduced":"0"},{"last_affected":"2.5.1"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}