AWS details custom authentication for Bedrock AgentCore using Lambda interceptors
This AWS Security Blog post demonstrates how to implement custom authentication for tools integrated with Amazon Bedrock AgentCore Gateway. It explains using a request Lambda interceptor to handle legacy HTTP Basic Authentication, retrieving system credentials from AWS Secrets Manager and constructing the necessary headers. This approach isolates credentials from the AI agent to mitigate prompt injection risks. AWS explicitly warns against Basic Auth as a long-term strategy, recommending modernization to OAuth 2.0 or IAM.
Notes (1) ›
- Implementing Legacy Basic Auth with Bedrock AgentCore
The post details using an AWS Lambda request interceptor within the Amazon Bedrock AgentCore Gateway to enable authentication against downstream tools using HTTP Basic Authentication. This solution involves retrieving system credentials securely from AWS Secrets Manager and constructing the Basic Auth header, isolating credentials from the agent model. While providing a reusable pattern, AWS advises this is an interim measure, recommending modernization to more secure authentication standards.
https://aws.amazon.com/blogs/security/implement-custom-authentication-for-tools-integration-using-request-lambda-interceptor-in-agentcore-gateway/
Related releases
- AWS Lambda functions now support full IAM resource-based policies AWS What's New ·
- CloudFront OAC now natively supports S3 Multi-Region Access Points as origins AWS What's New ·
- AWS Lambda MicroVMs Expands Availability to Five New Regions AWS What's New ·
- AWS CloudShell now includes a built-in visual file editor AWS What's New ·
- AWS IAM Role Manager Automates Service Role Setup AWS What's New ·
- AWS Lambda Adds Response Streaming for .NET Functions AWS Developer Tools Blog ·