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DNS-Sensor: A Sensor-Driven Architecture for Real-Time DNS Cache Poisoning Detection and Mitigation.

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This study introduces DNS-Sensor, a system detecting Domain Name System (DNS) cache poisoning attacks. It enhances DNS security and performance by using a local authoritative mirror for faster, more accurate threat detection.

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cache consistency checkingcache poisoningdisaster resolutiondomain name systemfragmentation attack

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Area of Science:

  • Computer Science
  • Network Security
  • Cybersecurity

Background:

  • The Domain Name System (DNS) is vital for internet functionality but vulnerable to cache poisoning attacks.
  • Evolving threats like DNS Forwarder fragmentation and side-channel attacks necessitate advanced security measures.
  • Existing defenses against DNS cache poisoning have limitations against newer attack vectors.

Purpose of the Study:

  • To propose and evaluate the DNS Cache Sensor (DNS-Sensor) system for detecting DNS cache poisoning.
  • To enhance the speed and accuracy of DNS security monitoring.
  • To improve overall DNS performance and resilience against attacks.

Main Methods:

  • Developed DNS-Sensor as a distributed network for continuous DNS cache record scanning.
  • Implemented anomaly detection by comparing cached DNS data with authoritative sources.
  • Utilized a local top-level domain authoritative mirror query system to expedite comparisons and queries.
  • Integrated DNS-Sensor with a disaster recovery resolution system for immediate response to detected poisoning.

Main Results:

  • DNS-Sensor accurately detects DNS cache poisoning incidents.
  • The local authoritative mirror query system significantly improves the efficiency of DNS-Sensor.
  • The integrated system demonstrates faster DNS query speeds compared to traditional DNS.
  • The proposed system enhances both DNS security and overall performance.

Conclusions:

  • DNS-Sensor provides a precise and effective method for detecting DNS cache poisoning.
  • The local authoritative mirror query system optimizes detection speed and query efficiency.
  • The integrated approach offers a robust solution for improving DNS security and performance in the face of emerging threats.