Boletines de Vulnerabilidades

Cisco OpenDNS Pulsing DNS Denial of Service Vulnerability

   
Software afectado Cisco
 
The Cisco OpenDNS service was susceptible to a DNS pulsing attack due to improper handling if a large volume of queued DNS requests was received. This attack takes advantage of multiple commonly implemented DNS mechanisms. DNS queries are sent at a low rate and amplified into large-sized responses. This concentrates the DNS responses into a short, high-volume burst to overwhelm target systems. Security Impact Rating: Informational

More info:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opendns-pulse-dos-Dd8L3sZq?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%20OpenDNS%20Pulsing%20DNS%20Denial%20of%20Service%20Vulnerability&vs_k=1