VAR-201405-0568
Vulnerability from variot - Updated: 2022-05-17 02:08Knot DNS is a high-performance DNS server developed by the Czech Internet Network Information Center (CZ.NIC). It supports all key DNS system features, such as zone conversion, dynamic update, and DNS Security Extensions (DNSSEC). A spoofing vulnerability exists in versions of Knot DNS prior to 1.4.5. The vulnerability stems from an error in the 'knot_tsig_check_digest ()' function when verifying a TSIG signature. Attackers can use this vulnerability to spoof signatures and bypass established session authentication. An attacker can exploit this issue to conduct spoofing attacks. This may aid in further attacks
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Nomenclature
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