DNS spoofing, or DNS cache poisoning, involves corrupting the Domain Name System (DNS) to redirect traffic from legitimate servers to malicious ones. This manipulation can lead users to fraudulent websites without their knowledge.
Challenges
- Traffic Redirection: Users can be unknowingly directed to malicious sites, leading to data theft or malware infection.
- Difficult Detection: Since the DNS responses appear legitimate, identifying spoofing can be challenging.
- Widespread Impact: Compromised DNS can affect numerous users and services, amplifying the attack’s reach.
Protection Strategies
- DNSSEC Implementation: Deploy Domain Name System Security Extensions to add authentication to DNS responses.
- Regular Cache Purging: Clear DNS caches periodically to remove potentially poisoned entries.
- Monitoring and Alerts: Set up systems to detect anomalies in DNS responses and alert administrators to potential issues.
