An issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing denial of service for normal resolution. In an exploit, the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
| Link | Tags |
|---|---|
| https://coredns.io/ | product |
| https://gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168ba | third party advisory |