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Bugfix: solve "Invalid signature" error on AWS IAM Roles Anywhere #519

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merged 1 commit into from
Nov 27, 2024
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Bugfix: solve "Invalid signature" error on AWS IAM Roles Anywhere #519

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6 changes: 6 additions & 0 deletions src/shared/awsagent/rolesanywhere_creds/credentials_provider.go
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,12 @@ func getCredentials(keyPath string, certPath string, roleARN string, account ope

leaf := certs[0]
intermediates := certs[1:]
if len(intermediates) == 0 {
// awssh.CreateSignFunction compares the intermediates slice to nil to check if the 'X-Amz-X509-Chain' header should be added to the request,
// and starting at some point, the AWS API started rejecting requests with an existing-yet-empty 'X-Amz-X509-Chain' header.
// To avoid this, we set the intermediates slice to nil if it's empty.
intermediates = nil
}

privKey, err := os.ReadFile(keyPath)
if err != nil {
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