Medium severity5.9NVD Advisory· Published Jul 8, 2017· Updated Jun 17, 2026
CVE-2017-11104
CVE-2017-11104
Description
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.
Affected products
11- osv-coords4 versionspkg:rpm/opensuse/knot&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/knot&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/knot&distro=SUSE%20Package%20Hub%2015%20SP1pkg:rpm/suse/knot&distro=SUSE%20Package%20Hub%2015%20SP2
< 1.6.8-lp151.4.3.1+ 3 more
- (no CPE)range: < 1.6.8-lp151.4.3.1
- (no CPE)range: < 1.6.8-lp152.5.3.1
- (no CPE)range: < 1.6.8-bp151.4.3.1
- (no CPE)range: < 1.6.8-bp152.4.3.1
Patches
Vulnerability mechanics
References
9- lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.htmlnvdBroken LinkMailing ListPatchThird Party Advisory
- www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdfnvdExploitMitigationPatchThird Party Advisory
- www.debian.org/security/2017/dsa-3910nvdThird Party Advisory
- bugs.debian.org/865678nvdIssue TrackingThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.htmlnvdBroken Link
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.htmlnvdBroken Link
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.htmlnvdBroken Link
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.htmlnvdBroken Link
- www.securityfocus.com/bid/99598nvdBroken Link
News mentions
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