PROTOCOL-DNS -- Snort alerted on a Domain Name Server (DNS) protocol issue. These packets travel over UDP on port 53 to serve DNS queries--user website requests through a browser. Several vulnerability use-cases exist (ie, additional data could be sent with a request, which would contact a DNS server pre-prepared to send information back and forth).
PROTOCOL-DNS ISC BIND unexpected DNAME CNAME ordering denial of service attempt
This event is generated when an attempt is made to exploit a known vulnerability in 2017-3137. Impact: Details: Ease of Attack:
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No known false positives
Cisco Talos This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology. For more information see http://nvd.nist.gov/
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