How To Exploit NULL Pointers 139
Posted
by
kdawson
from the but-were-embarrassed-to-ask dept.
from the but-were-embarrassed-to-ask dept.
An anonymous reader writes "Ever wondered what was so bad about NULL pointer exceptions? An MIT Linux kernel programmer explains how to turn any NULL pointer into a root exploit on Linux. (There was also a previous installment about virtual memory and how to make NULL pointers benign.)"
Easy and concise (Score:5, Funny)
TFA is an extremely well-written, easy-to-follow tutorial. I "played along at home" (well, at work, actually) as the author recommended and exploited a system on the first try. Great stuff!
Hang on, one of our SysAdmins wants to talk to me about something.
BRB
Re:I Know How To Do It (Score:2, Funny)
What a bad attempt at trolling. You could make various funny posts involving Windows and security, and this is what you came up with? Up your game, mister.
Re:Assumes a CALL to the NULL ptr (not any referen (Score:5, Funny)
For further context, see my whitepaper on how to turn any kdawson-posted Slashdot story into a NULL issue.
Re:I Know How To Do It (Score:3, Funny)
Re:OS dependent (Score:4, Funny)
But it's a bad summary.
java.lang.RedundantSlashdotObservationException
The sensible thing to do... (Score:2, Funny)
...as far as I can tell is simply to ban null pointers in the kernel.
I've done alot of development in my time and I've never needed to point at null.