A cryptographic weakness existed in the authentication protocol of Remote Desktop. This issue was addressed by implementing the Secure Remote Password authentication protocol. This issue is fixed in Apple Remote Desktop 3.9. An attacker may be able to capture cleartext passwords.
The Remote Desktop full-screen feature in Apple OS X before 10.9 and Apple Remote Desktop before 3.7 sends dialog-box text to a connected remote host upon being woken from sleep, which allows physically proximate attackers to bypass intended access restrictions by entering a command in this box.
Apple Remote Desktop before 3.7 does not properly use server authentication-type information during decisions about whether to present an unencrypted-connection warning message, which allows remote attackers to obtain sensitive information in opportunistic circumstances by sniffing the network during an unintended cleartext VNC session.
Format string vulnerability in Screen Sharing Server in Apple Mac OS X before 10.9 and Apple Remote Desktop before 3.5.4 allows remote attackers to execute arbitrary code via format string specifiers in a VNC username.
Apple Remote Desktop before 3.6.1 does not recognize the "Encrypt all network data" setting during connections to third-party VNC servers, which allows remote attackers to obtain cleartext VNC session content by sniffing the network.
Apple Remote Desktop before 3.1 uses insecure permissions for certain built-in packages, which allows local users on an Apple Remote Desktop administration system to modify the packages and gain root privileges on client systems that use the packages.
Apple Remote Desktop Client 1.2.4 executes a GUI application as root when it is started by an Apple Remote Desktop Administrator application, which allows remote authenticated users to execute arbitrary code when loginwindow is active via Fast User Switching.