Messages in this thread | ![/](/images/icornerl.gif) | | From | Erik Hensema <> | Subject | Re: How to fix the ptrace flaw without rebooting | Date | Thu, 3 Apr 2003 12:30:05 +0000 (UTC) |
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Chuck Ebbert (76306.1226@compuserve.com) 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 <erik@hensema.net> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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