Although DACL permissions are not the easiest topic to cover in one post and should be digested slowly, there are examples of potential attack scenarios we want to share. The following blog tries to shed some light on the subject, present the possible escalation paths and suggest relevant mitigations.
Announcement by Microsoft that they had removed the 16-character limit for passwords in Azure Active Directory had been coming for a while. It takes time for Microsoft to deploy such a fundamental change across all the places in their cloud systems where passwords can be changed. The first leaks that something was happening came in late April when people noticed that the user interface in components like the Azure AD portal and Office 365 Admin Center offered administrators the chance to set 256-character passwords.
The new password limit is also mentioned in the Microsoft 365 User Management blog for April 2019 (posted on 7 May). You can’t say that Microsoft didn’t give us hints that this was coming. Continue reading → Azure Gets Longer Passwords