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    SubjectRe: How to fix the ptrace flaw without rebooting
    Chuck Ebbert ( wrote:
    > Author: Chuck Ebbert
    > Adapted from: Phrack Inc., Volume 0x0b, Issue 0x3a, Phile #0x07
    > Directions: Run this program as root on an x86 machine.
    > It will disable the ptrace system call, thus
    > fixing the Linux 'ptrace flaw'. (It will also
    > break strace, debugging tools and User Mode Linux.)
    > WARNING: Your computer may crash or do other strange things
    > if you run this program as root. No warranty.

    If you can't reboot to apply a security fix, you've got a serious problem.

    A better fix in a running system is to simply disable dynamic module
    loading: echo /no/such/file > /proc/sys/kernel/modprobe
    At the very least you can be sure your machine won't crash this way ;-)

    Erik Hensema <>
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      Last update: 2005-03-22 13:34    [W:0.017 / U:3.476 seconds]
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