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upieper
join:2001-12-23

1 edit

upieper to Ravenheart

Member

to Ravenheart

Re: New flash attack has no real 'fix': 'everyone is vulnerable'

The browser process and any other processes started from the sandboxed browser will be sandboxed.

If you enter programs under Restrictions > Start/Run Access then these program are not allowed to run at all

balloonshark
Lets Go Mountaineers
join:2006-08-11
WV

balloonshark

Member

said by upieper:

The browser process and any other processes started from the sandboxed browser will be sandboxed.

If you enter programs under Restrictions > Start/Run Access then these program are not allowed to run at all
So your saying that this exploit triggers a drive by download (remote execution)? If so, it can be easily stopped.

I'd also like a clearer picture because from what I've read and could understand it sounds like this is a browser/plug-in only vulnerability that can steal your info. In that case, limiting executable wouldn't help.

upieper
join:2001-12-23

1 edit

upieper

Member

Running executables & downloading is all done within the sandbox....Stealing info, etc...is not prevented though, IMHO, since programs have read-access to ressources which are outside the sandbox....

I haven't checked but maybe Sandboxie can be configured to even limit that access...the question is how much this will restrict/hinder usability....

balloonshark
Lets Go Mountaineers
join:2006-08-11
WV

balloonshark

Member

Thanks for your reply! I do have Sbie configured to block access to my D: partition but I guess this flaw can grab cookies and other credentials (whatever that means).

If this flaw only exposes "session information" then Sandboxie, HIPS or other anti-executables would be useless. If the flaw triggered a drive-by download then they would stop the executable.

nwrickert
Mod
join:2004-09-04
Geneva, IL
·Metronet

nwrickert

Mod

Thanks for your reply! I do have Sbie configured to block access to my D: partition but I guess this flaw can grab cookies and other credentials (whatever that means).
I believe this is referring to flash cookies, that are saved with flash data and settings. Those are not the same as browser cookies.
Ravenheart
join:2006-02-10
Berkeley, CA

1 edit

Ravenheart to upieper

Member

to upieper
said by upieper:

The browser process and any other processes started from the sandboxed browser will be sandboxed.

If you enter programs under Restrictions > Start/Run Access then these program are not allowed to run at all
Upieper, if you look at the wording of the dialog, it's au contraire: only the programs you list are allowed to run; i.e., it's a whitelist, not a blacklist. (Although if nothing is listed, anything can run.)

Flash cookies go into the sandbox, where they can be read by anything that's part of the current browser process,* it seems.

*Edit: Or running in that sandbox.

upieper
join:2001-12-23

upieper

Member

yep...you're right, it's a whitelist

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