# Source: https://docs.datadoghq.com/security/code_security/iac_security/iac_rules/terraform/aws/group_with_privilege_escalation_by_actions_iam_attachgrouppolicy.md

---
title: Group with privilege escalation by actions 'iam:AttachGroupPolicy'
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: >-
  Docs > Datadog Security > Code Security > Infrastructure as Code (IaC)
  Security > IaC Security Rules > Group with privilege escalation by actions
  'iam:AttachGroupPolicy'
---

# Group with privilege escalation by actions 'iam:AttachGroupPolicy'

{% callout %}
# Important note for users on the following Datadog sites: app.ddog-gov.com

{% alert level="danger" %}
This product is not supported for your selected [Datadog site](https://docs.datadoghq.com/getting_started/site). ().
{% /alert %}

{% /callout %}

## Metadata{% #metadata %}

**Id:** `70b42736-efee-4bce-80d5-50358ed94990`

**Cloud Provider:** AWS

**Platform:** Terraform

**Severity:** Medium

**Category:** Access Control

#### Learn More{% #learn-more %}

- [Provider Reference](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_group_policy#policy)

### Description{% #description %}

Allowing an IAM group the `iam:AttachGroupPolicy` action with a `Resource` set to `"*"` enables any user in that group to attach any policy, including those with administrator privileges, to any group. This creates a significant privilege escalation risk, where users can grant themselves or others far greater permissions than originally intended by attaching powerful policies. If left unaddressed, this can lead to full account compromise, unauthorized access, and loss of control over all AWS resources.

## Compliant Code Examples{% #compliant-code-examples %}

```terraform
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{% #non-compliant-code-examples %}

```terraform
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 = [
          "iam:AttachGroupPolicy",
        ]
        Effect   = "Allow"
        Resource = "*"
      },
    ]
  })
}
```