On Wednesday, December 11, 2013 04:55:39 PM Robert Sanders wrote:
Morning again,
While working a bit more on the sysctl issue with net.ipv4.ip_forward and
net.ipv4.conf.all.accept_redirects found another interesting tidbit. My
boxes are stock installs, which includes the libvirtd service as an enabled
service. I noticed that my /etc/sysctl.conf file explicitly had
'net.ipv4.ip_forward = 0', but the output of 'sysctl
net.ipv4.ip_forward'
shows a running value of '1'. This makes sense, as libvirtd I believe
needs to be able to forward packets potentially between any virtual NICs on
the system. My question - is there a STIG that requires this service to be
disabled or not installed. If not, then RHEL-06-000082 will never be
satisfied. Bear in mind, I'm still working from the published RHEL6 STIG,
not the SSG document at this time.
In my opinion, there should be a STIG specifically for virtualization. For
example, you absolutely _must_ have the clean traffic ebtables rules loaded or
you have potential for all kinds of mischief.
-Steve
https://www.berrange.com/posts/2011/10/03/guest-mac-spoofing-denial-of-se...