I have just set up a Mac (10.8.4) with CS5 and CC.
By default all my Indesign files now want to open in Indesign Creative Cloud. If I Get Info of the file and choose Indesign CS5 and then select Change All, the selected app reverts back to Indesign CC.
If I don't choose Change All and just modify the one Indesign document the setting sticks. However I need to change all my Indesign/Photoshop files to open in the CS5 app.
I have tried rebuilding the launch services. But the default application still reverts to CC whenever I hit Change All.