Cyber Risks · Cisco Talos

What's in a name? Strange behaviors at top-level domains creates uncertainty in DNS

Summary: Google introduced the .zip Top Level Domain on May 3, 2023, reviving concern about name collisions, which ICANN defines as a user unknowingly reaching a public DNS name when they intended a private resource. Cisco Talos found the .kids TLD published no A record at the root level after dropping the 127.0.53.53 address in January 2023, and Talos successfully registered your-dns-needs-immediate-attention.kids, which drew HTTP requests from systems running Microsoft's System Center Configuration Manager.

Bottom line: Because Talos could register the name the ICANN framework uses to flag collisions, it could masquerade as a trusted system to networks using .kids names, potentially relaying internal mail and dictating configuration management settings.

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