+Dynamic Data Exchange Mitigation

Dynamic Data Exchange Mitigation

Registry keys specific to Microsoft Office feature control security can be set to disable automatic DDE/OLE execution.[1],[2],[3] Microsoft also created, and enabled by default, Registry keys to completely disable DDE execution in Word and Excel.[4]

Ensure Protected View is enabled[5] and consider disabling embedded files in Office programs, such as OneNote, not enrolled in Protected View.[6],[3]

On Windows 10, enable Attack Surface Reduction (ASR) rules to prevent DDE attacks and spawning of child processes from Office programs.[7],[6]

References

  1. Microsoft. (2017, November 8). Microsoft Security Advisory 4053440 - Securely opening Microsoft Office documents that contain Dynamic Data Exchange (DDE) fields. Retrieved November 21, 2017.
  2. Cimpanu, C. (2017, December 15). Microsoft Disables DDE Feature in Word to Prevent Further Malware Attacks. Retrieved December 19, 2017.
  3. Dormann, W. (2017, October 20). Disable DDEAUTO for Outlook, Word, OneNote, and Excel versions 2010, 2013, 2016. Retrieved February 3, 2018.
  4. Microsoft. (2017, December 12). ADV170021 - Microsoft Office Defense in Depth Update. Retrieved February 3, 2018.
  5. Microsoft. (n.d.). What is Protected View?. Retrieved November 22, 2017.
  6. Nelson, M. (2018, January 29). Reviving DDE: Using OneNote and Excel for Code Execution. Retrieved February 3, 2018.
  7. Brower, N. & D'Souza-Wiltshire, I. (2017, November 9). Enable Attack surface reduction. Retrieved February 3, 2018.

1. Panoramica

1.1 Riferimenti

1.2 Requisiti identificati

1.3 Regolamentazioni correlate

2. Requisiti identificati

Requisiti

3. Regolamentazioni correlate

Regolamentazioni

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