Microsoft Excel Credential Caching Vulnerability



Date Discovered

August 12, 2008


Microsoft Excel is prone to a vulnerability that allows unauthorized access to remote data source credentials that have been cached in Excel files. This issue is limited to Microsoft Excel 2007 and Microsoft Office 2008 for Mac.

Technologies Affected

  • Avaya Messaging Application Server
  • Avaya Messaging Application Server MM 1.1
  • Avaya Messaging Application Server MM 2.0
  • Avaya Messaging Application Server MM 3.0
  • Avaya Messaging Application Server MM 3.1
  • Microsoft Excel 2007
  • Microsoft Excel 2007 SP1
  • Microsoft Office 2008 for Mac


Permit privileged access for trusted individuals only.
Do not share documents with untrusted individuals. Ensure that documents are stored in a secure location so that untrusted individuals cannot access them.

Microsoft has released a security bulletin that addresses this vulnerability.



Jeremy Funk

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