ECS Service Admin Role Is Present

• Query id: 3206240f-2e87-4e58-8d24-3e19e7c83d7c
• Query name: ECS Service Admin Role Is Present
• Platform: Terraform
• Severity: High
• Category: Access Control
• URL: Github

Description

ECS Services must not have Admin roles, which means the attribute 'iam_role' must not be an admin role
Documentation

Code samples

Code samples with security vulnerabilities

Postitive test num. 1 - tf file

#this is a problematic code where the query should report a result(s)
resource "aws_ecs_service" "positive1" {
  name            = "mongodb"
  cluster         = aws_ecs_cluster.foo.id
  task_definition = aws_ecs_task_definition.mongo.arn
  desired_count   = 3
  iam_role        = "admin"
  depends_on      = [aws_iam_role_policy.foo]

  ordered_placement_strategy {
    type  = "binpack"
    field = "cpu"
  }

  load_balancer {
    target_group_arn = aws_lb_target_group.foo.arn
    container_name   = "mongo"
    container_port   = 8080
  }

  placement_constraints {
    type       = "memberOf"
    expression = "attribute:ecs.availability-zone in [us-west-2a, us-west-2b]"
  }
}

Code samples without security vulnerabilities

Negative test num. 1 - tf file

#this code is a correct code for which the query should not find any result
resource "aws_ecs_service" "negative1" {
  name            = "mongodb"
  cluster         = aws_ecs_cluster.foo.id
  task_definition = aws_ecs_task_definition.mongo.arn
  desired_count   = 3
  iam_role        = aws_iam_role.foo.arn
  depends_on      = [aws_iam_role_policy.foo]

  ordered_placement_strategy {
    type  = "binpack"
    field = "cpu"
  }

  load_balancer {
    target_group_arn = aws_lb_target_group.foo.arn
    container_name   = "mongo"
    container_port   = 8080
  }

  placement_constraints {
    type       = "memberOf"
    expression = "attribute:ecs.availability-zone in [us-west-2a, us-west-2b]"
  }
}