AWS Sigv4
Summary: PortSwigger's BApp Store lists AWS Sigv4, a Burp Suite extension by Anvil Secure at version 0.2.9, last updated 21 August 2025, that signs AWS HTTP requests with Signature Version 4 authentication. Because SigV4 signatures carry a timestamp and limited lifetime, the extension recomputes a new signature with the current timestamp when requests are repeated in tools like Burp Repeater, and it allows repeating requests with different AWS credentials.
Key Takeaway: The extension is third-party code that PortSwigger explicitly does not warrant for quality or usefulness, and it is rated at Medium estimated system impact - so a tool that handles AWS credentials and signing inside your testing workflow carries its own review burden.
Read the original at PortSwigger Research ↗
- Topics
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