Threat Level: green Handler on Duty: Guy Bruneau

SANS ISC: Microsoft Patch Tuesday: Expected Exchange patch problems. - SANS Internet Storm Center SANS ISC InfoSec Forums

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Microsoft Patch Tuesday: Expected Exchange patch problems.
As announced by Microsoft last week, today's patches will include a patch for Microsoft Exchange. RIM (Research in Motion / Blackberry) announced that todays patch will break some functionality required by its Enterprise Server. Other third party products may be affected as well.

"this update affects user mailbox permissions by revoking the 'Send As' permission in Exchange which has an impact on third party products such as BlackBerry Enterprise Server for Microsoft Exchange. Once applied, this update will prevent users on BlackBerry Enterprise Server from sending email from a BlackBerry or BlackBerry-enabled device, however users will still receive emails on their BlackBerry device. This is due to the BlackBerry service sending emails on behalf of a user when a message is sent via the BlackBerry device."

For a workaround, see:

Thanks to Colin and Chris for letting us know.

I will be teaching next: Application Security: Securing Web Apps, APIs, and Microservices - SANS London June 2022


4473 Posts
ISC Handler
May 9th 2006

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