[Bug]: Wrong creation of intermediate CA certificate with max_path_length = 0

[vaerh]

Terraform Core Version

1.6.4

Terraform Vault Provider Version

4.2.0

Vault Server Version

1.16.2

Affected Resource(s)

resource "vault_pki_secret_backend_root_sign_intermediate"

Expected Behavior

When the max_path_length = 0 attribute is specified, the certificate is expected to contain the following restriction:

X509v3 Basic Constraints: critical
    CA:TRUE, pathlen:0

Actual Behavior

X509v3 Basic Constraints: critical
    CA:TRUE

Relevant Error/Panic Output Snippet

No response

Terraform Configuration Files

# https://developer.hashicorp.com/vault/tutorials/secrets-management/pki-engine#step-2-generate-intermediate-ca

resource "vault_pki_secret_backend_root_sign_intermediate" "intermediate" {
  backend         = vault_mount.pki.path
  common_name     = "Intermediate CA"
  csr             = vault_pki_secret_backend_intermediate_cert_request.csr-request.csr
  format          = "pem_bundle"
  ttl             = local.ttl_1y
  issuer_ref      = vault_pki_secret_backend_root_cert.root-ca.issuer_name
  max_path_length = 0
}

Steps to Reproduce

terraform apply

Debug Output

No response

Panic Output

No response

Important Factoids

No response

References

#2060
#2253

Would you like to implement a fix?

Yes