PolarDNS is a specialized authoritative DNS server that allows the operator to produce custom DNS responses suitable for DNS protocol testing purposes.
PolarDNS can be used for testing of:
Some examples of DNS responses that PolarDNS can produce include:
These can lead to the discovery of various vulnerabilities, such as:
To learn more about PolarDNS, we talked with Sumit Dhar, CEO at OryxLabs, who provided insight into the tool.
“To address our requirements, the internal security team at OryxLabs decided to create PolarDNS – a tool that could provide a more comprehensive and versatile set of capabilities. Some of the unique features include:
There are many built-in features and modifiers to produce various DNS responses. Combining them makes it possible to produce countless variants of a given response.
These features allow PolarDNS to produce highly unusual, abnormal, and even malformed DNS responses, enabling the operators to see how the receiving side handles such situations and whether the receiving side is technically robust and mature.
If you are testing DNS products/protocol, I strongly recommend you check this page for a comprehensive list of features and differentiators.”
“Our key focus areas over the next year will be to build a community, drive a collaborative roadmap for additional features and continuously enhance the product. Against this backdrop of broad objectives, we will also evaluate potential integrations with other cybersecurity platforms/tools and support additional user awareness/trainings,” Dhar concluded.
PolarDNS is available for free download at GitHub.
More open-source tools to consider:
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