Group with privilege escalation by actions 'glue:UpdateDevEndpoint'

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Metadata

Id: 8f3c16b3-354d-45db-8ad5-5066778a9485

Cloud Provider: AWS

Platform: Terraform

Severity: Medium

Category: Access Control

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Description

This check identifies IAM group policies that grant the glue:UpdateDevEndpoint action with the resource set to "*", as shown in the following insecure example:

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

Allowing unrestricted access to glue:UpdateDevEndpoint enables users in the group to potentially attach arbitrary IAM roles to a Glue development endpoint, which can be leveraged for privilege escalation. If left unaddressed, attackers with this permission may exploit it to gain elevated permissions or access sensitive resources by executing malicious code or gaining unauthorized access to other AWS services. This misconfiguration can result in significant security risks, including compromise of AWS account resources and loss of sensitive information.

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_group" "cosmic" {
  name = "cosmic"
}

resource "aws_iam_group_policy" "test_inline_policy" {
  name = "test_inline_policy"
  group = aws_iam_group.cosmic.name

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