Questions about this topic? Sign up to ask in the talk tab.
Difference between revisions of "ASLR"
From NetSec
LydaGoblemj (Talk | contribs) |
|||
| Line 12: | Line 12: | ||
{{countermeasures}} | {{countermeasures}} | ||
| + | {{cleanup}}{{expand}}{{wrongperson}} | ||
Revision as of 20:24, 28 June 2012
Address Space Layout Randomization
A runtime security measure that randomizes the memory addresses that programs load data and code into. Usually implemented at the Operating System level, this will change the location of loaded code at each boot for libraries that are nx compliant. ASLR Bypass is typically achieved by exploiting a non nx compliant library in the context of an nx compliant operating system. You can disable ASLR on Linux (it's enabled by default on 2.6.* kernels) by typing:
sudo echo 0 > /proc/sys/kernel/randomize_va_space
into your command line, note that you will need access to root.
ASLR is implemented in Linux Kernel 2.6*, Windows XP SP3 and the more recent versions (Vista, 7, and 8).
ASLR is part of a series on countermeasures.
Template:Wrongperson
| This article contains too little information, it should be expanded or updated. |
|---|
Things you can do to help:
|
