Re:How Dropbox Hacks Your Mac
by elmigranto on Saturday September 10, 2016 @08:13AM
(#12468835)
It is, but OS X won't accept it and will not unlock Keychain item, unless all the apps that do this are in Accessibility. So if there is an app that uses those APIs but not in Accessibility, even you yourself won't be able to copy anything password-protected from Keychain.
SecurityAgent
Available for: OS X El Capitan 10.11
Impact: A malicious application can programmatically control keychain access prompts
Description: A method existed for applications to create synthetic clicks on keychain prompts. This was addressed by disabling synthetic clicks for keychain access windows.
CVE-ID
CVE-2015-5943
https://support.apple.com/en-us/HT205375