Messages in this thread |  | | Date | Sun, 19 Nov 2000 13:08:40 -0800 | From | Ben Ford <> | Subject | Re: BTTV detection broken in 2.4.0-test11-pre5 |
| |
Alexander Viro wrote:
> On Sun, 19 Nov 2000, Christer Weinigel wrote: > > > In article <Pine.LNX.4.30.0011190710440.13087-100000@anime.net> you write: > > >On Sun, 19 Nov 2000, Alexander Viro wrote: > > >> On Sun, 19 Nov 2000, David Lang wrote: > > >> > there is a rootkit kernel module out there that, if loaded onto your > > >> > system, can make it almost impossible to detect that your system has been > > >> > compramised. with module support disabled this isn't possible. > > >> Yes, it is. Easily. If you've got root you can modify the kernel image and > > >> reboot the bloody thing. And no, marking it immutable will not help. Open > > >> the raw device and modify relevant blocks. > > > > > >Kernel on writeprotected floppy disk... > > Cute. And when (not if) we get hit by new bug in the net/*/* you will drive > to the location of said router to upgrade the thing. >
No, I mail the customer a new operating CD.
-b
> > > So change the CMOS-settings so that the BIOS changes the boot order > > from A, C, CD-ROM to C first instead. *grin* How long do you want > > to keep playing Tic-Tac-Toe? > > Now, _that_ can be taken care of (custom boot code burnt into the thing) > > > Of course, using capabilities and totally disabling access to the raw > > disk devices and to any I/O ports might be the solution, provided that > > there are no bugs or thinkos in the capabilities code. > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > Please read the FAQ at http://www.tux.org/lkml/
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |