Test ID:	1.3.6.1.4.1.25623.1.0.143941
Category:	Denial of Service
Title:	Knot Resolver < 5.1.1 NXNSAttack Vulnerability
Summary:	Knot Resolver is prone to a denial of service vulnerability (NXNSAttack).
Description:	Summary: Knot Resolver is prone to a denial of service vulnerability (NXNSAttack). Vulnerability Insight: Knot Resolver allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an 'NXNSAttack' issue. This is triggered by random subdomains in the NSDNAME in NS records. Affected Software/OS: Knot Resolver prior to version 5.1.1. Solution: Update to version 5.1.1 or later. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-12667 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/76Y4FITMOH6RVPWAANGV7NB2ZHPJJGDQ/ http://cyber-security-group.cs.tau.ac.il/# https://en.blog.nic.cz/2020/05/19/nxnsattack-upgrade-resolvers-to-stop-new-kind-of-random-subdomain-attack/ https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html http://www.openwall.com/lists/oss-security/2020/05/19/2
Copyright	Copyright (C) 2020 Greenbone Networks GmbH

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.