Overly Permissive IAM Policies

ID: iam-full-admin-privileges

Severity: high

Author: princechaddha

Tags: cloud,devops,aws,amazon,iam,aws-cloud-config

Description

Verifies that no Amazon IAM policies grant full administrative privileges, ensuring adherence to the Principle of Least Privilege

YAML Source

id: iam-full-admin-privileges
info:
  name: Overly Permissive IAM Policies
  author: princechaddha
  severity: high
  description: |
    Verifies that no Amazon IAM policies grant full administrative privileges, ensuring adherence to the Principle of Least Privilege
  reference:
    - https://docs.aws.amazon.com/cli/latest/reference/iam/get-policy-version.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,iam,aws-cloud-config

flow: |
  code(1)
  for(let PolicyName of iterate(template.policies)){
    set("policy", PolicyName)
    code(2)
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws iam list-policies --scope Local --query 'Policies[*].Arn'

    extractors:
      - type: json # type of the extractor
        internal: true
        name: policies
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
         aws iam get-policy-version --policy-arn $policy --version-id v1 --query 'PolicyVersion.Document'

    matchers:
      - type: word
        words:
          - '"Effect": "Allow"'
          - '"Action": "*"'
          - '"Resource": "*"'
        condition: and

    extractors:
      - type: dsl
        dsl:
          - '"The IAM policy " + policy +" is Overly Permissive"'
# digest: 4a0a0047304502210098940409f5672fc1f68da9c1907754acea1d0241433323f390a792dd797e743c0220707d3a42896f419018cb2e0823eeffe4d2b6d582e98eda0a9362311f0d423bce:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "cloud/aws/iam/iam-full-admin-privileges.yaml"

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