terraform.gcp.security.gcp-pubsub-private-topic-iam-member.gcp-pubsub-private-topic-iam-member
semgrep
Author
unknown
Download Count*
License
Ensure that Pub/Sub Topics are not anonymously or publicly accessible
Run Locally
Run in CI
Defintion
rules:
- id: gcp-pubsub-private-topic-iam-member
patterns:
- pattern: resource
- pattern-either:
- pattern-inside: |
resource "google_pubsub_topic_iam_member" "..." {
...
member = "allUsers"
...
}
- pattern-inside: |
resource "google_pubsub_topic_iam_member" "..." {
...
member = "allAuthenticatedUsers"
...
}
message: Ensure that Pub/Sub Topics are not anonymously or publicly accessible
metadata:
owasp:
- A05:2017 - Broken Access Control
- A01:2021 - Broken Access Control
cwe:
- "CWE-284: Improper Access Control"
category: security
technology:
- terraform
- gcp
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
gcp-pubsub-private-topic-iam-member.tf
# ok: gcp-pubsub-private-topic-iam-member
resource "google_pubsub_topic_iam_member" "pass1" {
cluster = "my-private-topic-member1"
role = "roles/pubsub.publisher"
member = "group:mygroup@example.com"
}
# ok: gcp-pubsub-private-topic-iam-member
resource "google_pubsub_topic_iam_member" "pass2" {
cluster = "my-private-topic-member2"
role = "roles/pubsub.subscriber"
member = "domain:example.com"
}
# fail
# ruleid: gcp-pubsub-private-topic-iam-member
resource "google_pubsub_topic_iam_member" "fail1" {
cluster = "my-public-topic-member1"
role = "roles/pubsub.subscriber"
member = "allAuthenticatedUsers"
}
# fail
# ruleid: gcp-pubsub-private-topic-iam-member
resource "google_pubsub_topic_iam_member" "fail2" {
cluster = "my-public-topic-member2"
role = "roles/pubsub.viewer"
member = "allUsers"
}
Short Link: https://sg.run/RvWe