Security News KeyTrap attack: Internet access disrupted with one DNS packet

Gandalf_The_Grey

Level 76
Thread author
Verified
Honorary Member
Top Poster
Content Creator
Well-known
Apr 24, 2016
6,583
A serious vulnerability named KeyTrap in the Domain Name System Security Extensions (DNSSEC) feature could be exploited to deny internet access to applications for an extended period.

Tracked as CVE-2023-50387, KeyTrap is a design issue in DNSSEC and impacts all popular Domain Name System (DNS) implementations or services.

It allows a remote attacker to cause a long lasting denial-of-service (DoS) condition in vulnerable resolvers by sending a single DNS packet.

DNS is what allows us humans to access online locations by typing in domain names instead of the server's IP address our computer needs to connect to.

DNSSEC is a feature of the DNS that brings cryptographic signatures to DNS records, thus providing authentication to responses; this verification ensures that DNS data comes from the source, its authoritative name server, and has not been modified on the way to route you to a malicious location.
Fixes are already present in DNS services from Google and Cloudflare.
 

About us

  • MalwareTips is a community-driven platform providing the latest information and resources on malware and cyber threats. Our team of experienced professionals and passionate volunteers work to keep the internet safe and secure. We provide accurate, up-to-date information and strive to build a strong and supportive community dedicated to cybersecurity.

User Menu

Follow us

Follow us on Facebook or Twitter to know first about the latest cybersecurity incidents and malware threats.

Top