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Status published
Medium
CVE-2017-11104
Knot DNS before 2.4.5 and 2.5.x before 2.5.2 contains a...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.debian.org/security/2017/dsa-3910
- http://www.securityfocus.com/bid/99598
- https://bugs.debian.org/865678
- http://www.synacktiv.ninja/ressources/Knot_DNS_TSIG_Signature_Forgery.pdf
- https://lists.nic.cz/pipermail/knot-dns-users/2017-June/001144.html
- 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
Affected Vendor
knot-dns
View all reports →Affected Software
knot dns, debian linux
Vulnerable Versions:
0, 2.5.0, 2.5.1, 8.0, 9.0, 10.0
Timeline
Official Publish:
July 8th, 2017
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.