Simulating a hacker attack

[Daniel J Walsh]

Ok here is how I have simulated what you are trying to do.

cp /bin/sh /var/www/httpdsh
chcon -t httpd_exec_t /var/www/httpdsh

Add the following lines to 
/etc/selinux/targeted/src/policy/domains/misc/local.te


domain_auto_trans(unconfined_t,httpd_exec_t, httpd_t)
allow httpd_t devpts_t:chr_file rw_file_perms;

cd /etc/selinux/targeted/src/policy/
make load
setsebool httpd_tty_comm=1

Then run
/var/www/httpdsh
as root.

 /var/www/httpdsh
httpdsh: /root/.bashrc: Permission denied
# id
uid=0(root) gid=0(root) 
groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel) 
context=root:system_r:httpd_t:s0-s0:c0.c127
# cat /etc/shadow
cat: /etc/shadow: Permission denied
# cat /var/log/messages
cat: /var/log/messages: Permission denied





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