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ARD Trojan Exploit

post #1 of 4
Thread Starter 
Ok so this is probably the first flaw that might be worth mentioning, and since I am sure it will be I figure I will post some general info on it.

There is a flaw in Apple Remote Desktop, that allows a trojan to gain complete access to the system. It does so because ARD (Apple Remote Desktop) can run applescripts as root. This is being exploited, it is unclear whether it requires you to enter a password or not to actually be vulnerable, but based off what I have seen thus far I would lean towards you might be vulnerable without a password.

There is also a VERY basic workaround apparently. As counterintuitive as it is, turning ON Apple Remote Desktop access on your computer will prevent you from being vulnerable. The reason is turning on the service also enables some security checks that were apparently not thought needed when the service was not enabled. There is actually a bit of logic there, but it doesn't need to be gone into here for the moment.

So yes an exploit does exist. Yes this will likely get patched quickly. NO This is NOT a virus. In the meantime, don't download random programs from places you don't trust, or the standard targets of Limewire, GnuTella, Bittorrent, etc. And if you are worried about it, you can turn on Apple Remote Desktop. To be honest I personally won't be concerned with it. In order to have a problem you have to first download and install the applescript, not something I have a habit of doing.

Seablade
post #2 of 4
I just read about this today.

Funny how the workaround is to turn ARD on and not off. heh
post #3 of 4
Thread Starter 
Well the basis is, when noone can connect to ARD because it is off, the checks are not needed. They probably didn't think about someone using applescript to access it locally(Kinda defeats the purpose of a REMOTE desktop, which is why this exploit can work. As I said though, will probably be fixed pretty quick and is extremely easy to prevent.

Seablade
post #4 of 4
Yeah, I read about this too. Some more info I found:

Quote:
First the user needs to download and open the Trojan with root privileges. Once it is opened, the file adds itself to the login process and can perform a variety of functions, such as keystroke logging, take pictures using iSight camera, take screenshots, and open file sharing.

The problem affects 10.4 and 10.5 users, and is said to be distributed via iChat and Limewire. The bundled files contain such names as "ASthtv05" and ASthtv06."
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