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How to avoid the new 'Help' URL handler vulnerability
One of my userids on one of our Macs will not "take" the change. I even tried using MoreInternet to remove the help entry from the list of protocols. Still, the exploit works, and when I look again in System Preferences>MoreInternet, I see that the Help Viewer settings are always back as they were before I changed anything.
How to avoid the new 'Help' URL handler vulnerability
AppleScript itself is used to message an application to accept a URL. You need to have a GURL handler declared in your application's scriptSuite (possibly requiring the name "GetURL"; I'm not sure). Therefore, only real applications that have applescript enabled (and a GURL handler) can be the helper for a URL scheme.
You can use my RCDefaultApp pref pane (as mentioned in a previous reply) to just disable a URL scheme. The internal implementation is to assign it to a simple do-nothing application, which does declare a GURL handler.
MoreInternet changes not taking effect for some userids...
... on both Panther and Jaguar boxes. Two of the users [one each on Panther and Jaguar] show different symptoms:
MoreInternet changes not taking effect for some userids...
Yes, RCDefaultApp should work. There is no real way to "remove" a mapping; as long as LaunchServices knows of an application that can handle a URL scheme, it will use it. There are ways to kill all of the user-set mappings, but I would think that all Apple-provided default helpers get re-added. |
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