CVEvulnerability
CVE-2017-11104
5.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2017-07-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-20
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 configurations
• knot-dns knot dns (<= 2.4.4)
• knot-dns knot dns 2.5.0
• knot-dns knot dns 2.5.1
• debian debian linux 8.0
• debian debian linux 9.0
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html Broken Link
- http://www.debian.org/security/2017/dsa-3910 Third Party Advisory
- http://www.securityfocus.com/bid/99598 Broken Link
- http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf Exploit, Mitigation, Patch, Third Party Advisory
- https://bugs.debian.org/865678 Issue Tracking, Third Party Advisory
- https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html Broken Link, Mailing List, Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00076.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00078.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00089.html Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00049.html Broken Link
- http://www.debian.org/security/2017/dsa-3910 Third Party Advisory
- http://www.securityfocus.com/bid/99598 Broken Link
- http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf Exploit, Mitigation, Patch, Third Party Advisory
- https://bugs.debian.org/865678 Issue Tracking, Third Party Advisory
- https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html Broken Link, Mailing List, Patch, Third Party Advisory