Fast Infoset Tester
Summary: FISTA - Fast InfoSet Translator and Attacker is a Burp Suite extension, authored by Robert Bone of Pen Test Partners, that converts incoming Fast Infoset requests and responses to XML and converts outgoing messages back to Fast Infoset. The extension, version 1.1 and last updated 02 October 2017, lets messages be analyzed within Burp using tools including Repeater, Intruder and Scanner while the client and server remain unaware of the translation.
Key Takeaway: Fast Infoset traffic normally sits outside the reach of Burp's Repeater, Intruder and Scanner, so a tester facing a binary-encoded endpoint has to translate it before any of those tools can touch it. This extension is a third-party BApp last updated in October 2017, and PortSwigger states it makes no warranty about its quality or usefulness.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026