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Qasim Lone

4

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306

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About the author

I am a research engineer in the R&D department at RIPE NCC. I am interested in internet measurements, internet outages, data analysis, and cybersecurity. Prior to joining RIPE NCC, I defended my Ph.D. in cyber-security at Delft University of Technology (TU Delft), The Netherlands.

SAV: Why Is Source Address Validation Still a Problem?

SAV: Why Is Source Address Validation Still a Problem?

13 min read

Despite being a known vulnerability for at least 25 years, source IP address spoofing remains a popular attack method for redirection, amplification and anonymity. Preventing these attacks requires that operators implement Source Address Validation (SAV) to ensure their networks filter packets with…

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Detecting DNS Root Manipulation

Detecting DNS Root Manipulation

11 min read

In 2021, reports emerged that hosts in Mexico were unable to reach whatsapp.net. It was determined that middleboxes were to blame, intercepting the queries to the root instance hosted in China and sending a bogus reply. This article investigates the prevalence of middleboxes using RIPE Atlas probes.

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