Path Traversal in AWS SAM CLI allows file copy to local cache
After completing a build with AWS Serverless Application Model Command Line Interface (SAM CLI) which include symlinks, the content of those symlinks are copied to the cache of the local workspace as regular files or directories. As a result, a user who does not have access to those symlinks outside of the Docker container would now have access via the local workspace.
Users should upgrade to version 1.134.0 and ensure any forked or derivative code is patched to incorporate the new fixes. After upgrading, users must re-build their applications using the sam build --use-container to update the symlinks.
Path Traversal in AWS SAM CLI allows file copy to build container
When running the AWS Serverless Application Model Command Line Interface (SAM CLI) build process with Docker and symlinks are included in the build files, the container environment allows a user to access privileged files on the host by leveraging the elevated permissions granted to the tool. A user could leverage the elevated permissions to access restricted files via symlinks and copy them to a more permissive location on the container.
Users should upgrade to v1.133.0 or newer and ensure any forked or derivative code is patched to incorporate the new fixes.
Sensitive Information Exposure Through Insecure Logging For Secrets Like Metadata.DockerBuildArgs
### Summary
The AWS Serverless Application Model (SAM) CLI is an open source tool that allows customers to build, deploy and test their serverless applications built on AWS. AWS SAM CLI can build container (Docker) images and customers can specify arguments in the SAM template that are passed to the Docker engine during build [1].
### Impact
If customers specify sensitive data in the DockerBuildArgs parameter of their template, the sensitive data will be shown in clear text in the AWS SAM CLI output via STDERR when running the sam build command.
### Patches
A patch is included in aws-sam-cli>=1.122.0.
We strongly recommend customers insta