Exchange privilege escalations to Active Directory
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This repository provides a few techniques and scripts regarding the impact of Microsoft Exchange deployment on Active Directory security. This is a side project of AD-Control-Paths, an AD permissions auditing project to which I recently added some Exchange-related modules.
For pentesters looking to take control of an AD domain, Exchange is a valid intermediary target. The servers are much less secured than domain controllers by default and the control groups are distinct in the usual permissions models, which provides numerous alternative targets. They are also more difficult to migrate and business critical, so organizations often adopt a slower migration process for Exchange than for AD and do not specifically harden the servers.
Exchange deployment on an Active Directory domain is an interesting case. Many attributes and classes are added to the schema, security groups are created and DACL on some AD objects are heavily modified.
Basically, you can select among 3 permissions models:
Particularly, DACLs for RBAC Split and Shared models are enumerated here: https://technet.microsoft.com/en-us/library/ee681663(v=exchg.150).aspx .
High value targets: