Bugzilla Permission Denied in IIS on Windows

03 June 2015

You’re setting up Buzilla on Windows with IIS and get a permissions error like this whenever you try to save config values:

Error in tempfile() using template data\params.XXXXX: Could not create temp file     data\params.I19Ig: Permission denied at Bugzilla/Config.pm line 270.
For help, please send mail to this site's webmaster, giving this error message and the time and date of the error. 
[Wed Sep 17 13:14:16 2014] editparams.cgi: Error in tempfile() using template data\params.XXXXX: Could not create temp file data\params.I19Ig: Permission denied at Bugzilla/Config.pm line 270.

You’ve probably already tried setting the Application Pool to use a different user account and set all the file permissions on %bugzilla%/data but it still doesn’t work.

This is because the CGI settings are being used, rather than the App Pool.

How to fix it

• Open IIS
• Navigate to your Buzilla site/application
• Go to Features View if it’s not by default (use the tabs at the bottom of the window)
• Double-click on CGI
• Change Impersonate User to False
• Restart the site or the whole IIS instance

Try to submit your Bugzilla config again from /editconfig.cgi and hopefully everything should now be working!

Hope this helps!

Written 2015-06-03