- [Presenter] Let's go over
what are packet injection attacks in wireless networks.
To perform this type of attack,
an attacker must have a deep understanding
and knowledge of the protocol use in the wireless network.
First, you need to perform passive information gathering
of the network
and then create the specific wireless protocol frames
in order to send it to the target network.
There are basically two ways of doing this.
You can either create a false packet
and then inject that packet into that network.
And the other way is actually to sniff the network traffic.
And once the packets are actually sent to the destination
the response from that wireless network
is actually captured then intercepted and then modified
to perform a man-in-the-middle attack.
And don't worry, we will cover man-in-the-middle attacks
in the next lesson.
Now you can detect packet injection,
running a packet analyzer or packet sniffer
on the wireless network, right?
So if point A, so if the source or
specific entity in the network has no record
of actually sending certain packets that show up
in the log at point B or vice versa, right?
Then you can probably assume
that these inconsistencies could lead and show
that those packets have been forged
and have been injected by somebody else, right?
You will learn how to do packet injection attacks
later in this course whenever we actually cover
some of the tools like Aircrack-ng and some others.
You will also learn some caveats about packet injection
with some wireless adapters in lesson three
when we cover the different wireless antennas and adapters.