support:DownloadAttachment is a Read access-level action in the support service. Grants permission to get a presigned URL to download an attachment from an AWS Support case
This action does not support resource-level permissions; use "Resource": "*" in your policy.
No condition keys are documented for this action.
A minimal policy that allows support:DownloadAttachment. Replace "Resource": "*" with a specific ARN to follow least privilege.
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "AllowSupportDownloadAttachment",
"Effect": "Allow",
"Action": "support:DownloadAttachment",
"Resource": "*"
}
]
}