Cyber Risks · PortSwigger Research

San Scanner

Summary: SAN Scanner is a Burp Suite extension by Alejandro Alvarado, version 1.0, that enumerates associated domains and services through the Subject Alt Names section of SSL certificates. It was last updated on 25 August 2021 and is distributed through the BApp Store, with PortSwigger stating it makes no warranty about third-party extensions' quality or usefulness.

Why it matters: Certificate SAN entries routinely list internal hostnames and related domains, so a free extension that harvests them gives an attacker a ready map of your external footprint - and this one has sat unupdated since August 2021.

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Topics
Vulnerabilities & Patching
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