Re: SELinuxDenyPtrace: Write, compile, run, but don't debug applications?

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On Tue, Apr 10, 2012 at 11:12:48AM -0400, Daniel J Walsh wrote:

> The problem with option 4 is that it is very difficult to do since the desktop
> is so connected.  Say we isolate firefox_t as the same as unconfined_t without
> ptrace.

Unless an app is current confined, I don't think there's a real need for 
app-specific domains - just an unconfined_except_ptrace_t one.

> firefox_t can start lots of helper apps, should the helper apps run as
> firefox_t or unconfined_t?  If unconfined_t start office it runs as
> unconfined_t if firefox starts it, it runs as firefox_t, if unconfined_t
> office is running the firefox_t can cause it to open a new document, which
> could somehow trigger gdb...

Helper apps would all be run in the same confined domain, unless they're 
more restricted? Libreoffice would be a prime example of an app that 
you'd want to be confined.

> What about the dbus session bus, Can firefox_t start a gdb session via the
> session but to get around the confinement?

I don't think so, no.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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