Messages in this thread | | | Date | Mon, 24 Nov 2003 13:08:38 -0500 | From | splite@purdue ... | Subject | Re: hard links create local DoS vulnerability and security problems |
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On Mon, Nov 24, 2003 at 06:57:41PM +0100, Jakob Lell wrote: > [...] > Setuid-root binaries also work in a home directory. > You can try it by doing this test: > ln /bin/ping $HOME/ping > $HOME/ping localhost > [...]
That's why you don't put user-writable directories on the root or /usr partitions. (For extra points, mount your /tmp and /var/tmp partitions nodev,nosuid.) Seriously guys, this is Unix Admin 101, not a major new security problem. - 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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