DNS Resolver Vulnerability in D-Link DSL 2730-U and DIR-600M Devices

CVE-2020-13960

Summary

D-Link DSL 2730-U and DIR-600M devices are affected by a DNS resolver vulnerability that allows remote attackers to exploit the default DNS settings. Specifically, the presence of the domain.name string in the DNS search path enables attackers to return valid DNS responses for generally unreachable subdomains, effectively bypassing NXDOMAIN errors. This can lead to potential unauthorized access to services and exposure of sensitive information, highlighting the need for users to secure their devices by adjusting the DNS resolver settings.

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