Adversaries may attempt to get a listing of email addresses and accounts. Adversaries may try to dump Exchange address lists such as global address lists (GALs).[1]
In on-premises Exchange and Exchange Online, the Get-GlobalAddressList PowerShell cmdlet can be used to obtain email addresses and accounts from a domain using an authenticated session.[2],[3]
In Google Workspace, the GAL is shared with Microsoft Outlook users through the Google Workspace Sync for Microsoft Outlook (GWSMO) service. Additionally, the Google Workspace Directory allows for users to get a listing of other users within the organization.[4]
References
- Microsoft. (2020, February 7). Address lists in Exchange Server. Retrieved March 26, 2020.
- Microsoft. (n.d.). Get-GlobalAddressList. Retrieved October 6, 2019.
- Bullock, B.. (2016, October 3). Attacking Exchange with MailSniper. Retrieved October 6, 2019.
- Google. (n.d.). Retrieved March 16, 2021.
Powiązane zgłoszenia
| Typ powiązania | Zgłoszenie |
|---|---|
| is related to | Techniques |
| is blocked by | Enumeration of Global Address Lists via Email Account Discovery |
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