IAM user can use role chaining to access sensitive data

iam
このページは日本語には対応しておりません。随時翻訳に取り組んでいます。
翻訳に関してご質問やご意見ございましたら、お気軽にご連絡ください。

Description

An IAM user can use role chaining to access sensitive data. If an attacker compromises this user’s credentials, they can assume one or more IAM roles in sequence, following a chain of trust relationships to ultimately gain access to resources containing sensitive information such as S3 buckets, RDS databases, or DynamoDB tables. Each step in the chain grants additional permissions until the attacker reaches the target sensitive data.

Remediation

  1. Review and adjust IAM user permissions to limit role assumption capabilities.
  2. Review and manage IAM roles in the chain to ensure they follow the principle of least privilege.