[lkml]   [2000]   [Nov]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: BTTV detection broken in 2.4.0-test11-pre5
    On Sun, Nov 19, 2000 at 07:00:41PM -0800, Dan Hollis wrote:
    > On Mon, 20 Nov 2000, David Woodhouse wrote:
    > > On Sun, 19 Nov 2000, Dan Hollis wrote:
    > > > Writeprotect the flashbios with the motherboard jumper, and remove the
    > > > cmos battery.
    > > > Checkmate. :-)
    > > Only if you run your kernel XIP from the flash. If you load it into RAM,
    > > it's still possible for an attacker to modify it. You can load new code
    > > into the kernel even if the kernel doesn't make it easy for you by having
    > > CONFIG_MODULES defined.
    > The original assertion made was that a script kiddie could modify the
    > kernel so you wouldnt be able to detect a rooted box even after a reboot.
    > What I posted would stop that cold, 100%. Boot from writeprotected floppy,
    > writeprotect the flashbios, and remove the cmos battery.

    There was some patch floating around so you could boot a new kernel without
    having to reboot. And I'm guessing you could also "box" it into a plex86

    ____/| Ragnar Højland Freedom - Linux - OpenGL Fingerprint 94C4B
    \ o.O| 2F0D27DE025BE2302C
    =(_)= "Thou shalt not follow the NULL pointer for 104B78C56 B72F0822
    U chaos and madness await thee at its end." hkp://

    Handle via comment channels only.
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 12:47    [W:0.021 / U:161.824 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site