Burp Collaborator - Port Swigger
Summary: PortSwigger's documentation describes Burp Collaborator as a tool that induces a target application to interact with an external Collaborator server, letting testers find invisible vulnerabilities that return no noticeably different response to a successful attack. The public Collaborator server currently uses the domains *.burpcollaborator.net and *.oastify.com, and Burp polls it for results automatically every 60 seconds, with interactions exportable as CSV or, for a single SMTP interaction, as an .eml file.
Bottom line: Out-of-band interaction is the detection channel for vulnerabilities that leave no visible response, so a target or tester machine that cannot reach both Collaborator domains on ports 80 and 443 turns those findings into false negatives. PortSwigger says it periodically adds new public domain names specifically to reduce WAF blacklisting, which is the mechanism that produces those false negatives.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
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