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.

References

https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html

https://bugs.debian.org/865678

http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf

http://www.securityfocus.com/bid/99598

http://www.debian.org/security/2017/dsa-3910

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html

Details

Risk Information

CVSS v2

CVSS v3