Metadata

Id: terraform-aws-role-with-privilege-escalation-by-actions-glue-updatedevendpoint

Provider: AWS

Platform: Terraform

Severity: Medium

Category: Access Control

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• Provider Reference

Description

Granting the glue:UpdateDevEndpoint permission with the Resource set to "*" in an AWS IAM role introduces a privilege escalation risk. The glue:UpdateDevEndpoint action allows modification of existing AWS Glue DevEndpoints, including the ability to attach arbitrary IAM roles to these endpoints. An attacker with this permission could attach a role with higher privileges to a DevEndpoint and then use that role’s credentials to perform unauthorized actions, bypassing intended security boundaries. If not addressed, this can lead to full account compromise or access to sensitive information by escalating the attacker’s privileges within the AWS environment.

Compliant Code Examples

resource "aws_iam_user" "cosmic2" {
  name = "cosmic2"
}

resource "aws_iam_user_policy" "inline_policy_run_instances2" {
  name = "inline_policy_run_instances"
  user = aws_iam_user.cosmic2.name

  policy = jsonencode({
    Version = "2012-10-17"
    Statement = [
      {
        Action = [
          "ec2:Describe*",
        ]
        Effect   = "Allow"
        Resource = "*"
      },
    ]
  })
}

Non-Compliant Code Examples

resource "aws_iam_role" "cosmic" {
  name = "cosmic"
}

resource "aws_iam_role_policy" "test_inline_policy" {
  name = "test_inline_policy"
  role = aws_iam_role.cosmic.name

  policy = jsonencode({
    Version = "2012-10-17"
    Statement = [
      {
        Action = [
          "glue:UpdateDevEndpoint",
        ]
        Effect   = "Allow"
        Resource = "*"
      },
    ]
  })
}