How to remove Office Web Apps 2013 with Service Pack 1 and apply Security Update 2878219

Today Microsoft released a security patch, MS14-017: Description of the security update for Office Web Apps Server 2013: April 8, 2014 This security patch affects the .rtf file type.  However, the patch will not apply correctly with Office Web Apps 2013 server Service Pack 1.  When you apply the patch to the server, the following message will be presented:
The following steps address when the security patch, 2878219, is applied to an Office Web Apps 2013 Service Pack 1 server:
1. This Powershell command will provide the output of your server information to have when adding the Office web apps server back in a later step.: 
Get-OfficeWebAppsFarm >C:\Name_of_Folder_of_your_choice\WAC1.txt
  a. On the Office Web Apps Server that you want to apply the software update to open the Windows PowerShell prompt as an administrator and run the following command.  If you have multiple Office Web Apps servers at Service Pack 1
  b. Example:  Get-Officewebappsfarm shows the following servers: {WAC1, WAC2}.  In this case, WAC1 is the first server, which is the ‘parent’.  WAC2 is considered a ‘child’ server. 
  c. In that case, run the remove command below on WAC2 first, and then run it on WAC1.


*This will remove the Office web apps configuration from that machine. 

2. Uninstall Office Web Apps 2013 by using Add or Remove programs.  Reboot the server.
3. Reinstall Office Web Apps Server.   
4. After reinstall of Office web apps and before creating the new Office web apps server, then apply the December 2013 Cumulative Update: 
5. Then you may install the Security patch .
6. Restart the Office web apps server.
7. To complete deployment of Office Web Apps, refer to your WAC1.txt file created in Step 1 and the steps described in TechNet article: Deploy Office Web Apps Server:

Comments (10)
  1. Anonymous says:

    thank you

  2. Anonymous says:

    Thanks for the article.This will be useful to share point community

  3. Anonymous says:

    A known issue with Office Web Apps 2013 may prevent users from applying the Web Apps update of security

  4. Jason Charnov says:

    yeah… we’ll just wait until you guys fix your patch. I rather have a compromised server than downtime.

  5. D. Graf says:

    Agreed. Not jumping through hoops because of a patch released without proper prior testing.

  6. Alext-VA says:

    Thank you for the post. I thought something is wrong with my environment. RTF bug is a nasty one. After digging around some more as it turns out SP1 for SharePoint 2013 has been pulled by MS. See here:
    Hopefully fix will drop soon enough.

  7. J. Wills says:

    The process works. It’s really not that big of a deal.

  8. Anonymous says:

    As you might know, when Microsoft originally released Service Pack 1 (SP1) for Office Web Apps Server

  9. Fix SP Please says:

    When will you be releasing a patch that doesn’t involving uninstalling and re-installing the product?

  10. Perth Removals says:

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