#
# Download, Install and Test libsafe
#
#
# 28-Apr-01 amo Date-of-Birth
# 16-Apr-05 amo Latest is libsafe-2.0.16.tgz
#
#
# Original Files
# --------------
#       http://www.Linux-Sec.net/harden/libsafe.txt
#       http://www.Linux-Sec.net/harden/libsafe.uhowto.txt
#
#
cd /usr/local/src
#
#
# wget http://www.avayalabs.com/project/libsafe
# wget http://www.research.avayalabs.com/project/libsafe/src/libsafe-2.0-16.tgz
#
#
#
tar zxvfp libsafe-2.0-16.tgz
#
cd libsafe-2.0-16
#
# Compile and Install it
# ------------------------
#
make
make install
#
#
# Make the test programs
# ----------------------
#
cd exploits
make
#
#
# Watch for libsafe log messages
# ------------------------------
#
tail -100 /var/log/secure
#
#
# An NON-root user...try to gain root access...
# ---------------------------------------------
#	user# touch /Can_I_write_a_file.txt
#
./int.sh t1 
	- hit carraige return  and watch

./int.sh t3 
	- hit carraige return  and watch

./int.sh t4 
	- hit carraige return  and watch

./xlock -nolock

./canary-exploit 

./exploit-non-exec-stack
#
#
# Now enable libsafe
# ==================
#
export LD_PRELOAD=/lib/libsafe.so.2
#
#
#
- rerun the above exploit tests

#
#
# Permanently install libsafe
# ---------------------------
#
#
vi  /etc/profile
	....
	#
	# Installing libsafe
	#
	export LD_PRELOAD=/lib/libsafe.so.2
	#
	# unset LD_PRELOAD  to unload it
	#
#
# end of file