IAmazonServiceCatalog.AssociatePrincipalWithPortfolio (AssociatePrincipalWithPortfolioRequest)

When you associate a principal with portfolio, a potential privilege escalation path may occur when that portfolio is then shared with other accounts. For a user in a recipient account who is not an Service Catalog Admin, but still has the ability to create Principals (Users/Groups/Roles), that user could create a role that matches a principal name association for the portfolio. Although this user may not know which principal names are associated through Service Catalog, they may be able to guess the user. If this potential escalation path is a concern, then Service Catalog recommends using PrincipalType as IAM. With this configuration, the PrincipalARN must already exist in the recipient account before it can be associated.