CAPEC Details
Name DNS Blocking
Likelyhood of attack Typical severity
High Very High
Summary An adversary intercepts traffic and intentionally drops DNS requests based on content in the request. In this way, the adversary can deny the availability of specific services or content to the user even if the IP address is changed.
Prerequisites This attack requires the ability to conduct deep packet inspection with an In-Path device that can drop the targeted traffic and/or connection.
Solutions Hard Coded Alternate DNS server in applications Avoid dependence on DNS Include "hosts file"/IP address in the application. Ensure best practices with respect to communications channel protections. Use a .onion domain with Tor support
Related Weaknesses
CWE ID Description
CWE-300 Channel Accessible by Non-Endpoint
Related CAPECS
CAPEC ID Description
CAPEC-603 An adversary blocks the delivery of an important system resource causing the system to fail or stop working.