terraform.aws.security.aws-transfer-server-is-public.aws-transfer-server-is-public
semgrep
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Transfer Server endpoint type should not have public or null configured in order to block public access. To fix this, set your endpoint_type
to "VPC"
.
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Defintion
rules:
- id: aws-transfer-server-is-public
patterns:
- pattern: |
resource "aws_transfer_server" $ANYTHING {
...
}
- pattern-not-inside: |
resource "aws_transfer_server" $ANYTHING {
...
endpoint_type = "VPC"
...
}
message: Transfer Server endpoint type should not have public or null configured
in order to block public access. To fix this, set your `endpoint_type` to
`"VPC"`.
metadata:
category: security
technology:
- terraform
- aws
owasp:
- A05:2017 - Broken Access Control
- A01:2021 - Broken Access Control
cwe:
- "CWE-284: Improper Access Control"
references:
- https://owasp.org/Top10/A01_2021-Broken_Access_Control
subcategory:
- audit
likelihood: LOW
impact: LOW
confidence: LOW
license: Commons Clause License Condition v1.0[LGPL-2.1-only]
vulnerability_class:
- Improper Authorization
languages:
- hcl
severity: WARNING
Examples
aws-transfer-server-is-public.tf
# fail
# ruleid: aws-transfer-server-is-public
resource "aws_transfer_server" "example_public" {
endpoint_type = "PUBLIC"
protocols = ["SFTP"]
}
# pass
resource "aws_transfer_server" "example_vpc" {
endpoint_type = "VPC"
protocols = ["SFTP"]
}
# fail
# ruleid: aws-transfer-server-is-public
resource "aws_transfer_server" "example" {
protocols = ["SFTP"]
}
Short Link: https://sg.run/L39r