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AWS Sigv4

This is a Burp extension for signing AWS requests with SigV4. Signature Version 4 is a process to add authentication information to AWS HTTP requests. More information can be found here

SigV4 uses a timestamp to give signatures a limited lifetime. When using tools like Burp repeater, this plugin will automatically compute a new signature with the current timestamp. You can also repeat requests using different AWS credentials.


  • Credentials can be imported from a file or environment variables.
  • Automatically select a profile based on the key id in the request.
  • Resend requests with different credentials.
  • Context menu item for copying s3 presigned URLs.
  • Assume a role by providing a role ARN and optional external ID.

For more information check out the README

Author Anvil Secure
Version 0.2.7
Last updated 16 February 2022

You can install BApps directly within Burp, via the BApp Store feature in the Burp Extender tool. You can also download them from here, for offline installation into Burp.

You can view the source code for this BApp by visiting our GitHub page.
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Please note that extensions are written by third party users of Burp, and PortSwigger Web Security makes no warranty about their quality or usefulness for any particular purpose.

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