This document discusses security attacks in mobile ad-hoc networks (MANETs). It begins by defining MANETs as decentralized wireless networks composed of mobile nodes that communicate in a peer-to-peer fashion without fixed infrastructure. It notes that MANETs are vulnerable to both passive and active attacks. Passive attacks target confidentiality by snooping data, while active attacks disrupt normal operation by modifying, injecting, or dropping packets. Several specific active attacks are described, including black hole attacks, wormhole attacks, and routing table poisoning attacks. The document aims to identify security objectives, potential threats, and vulnerabilities in order to analyze attacks on MANETs.

1. Study Of Security
Attacks In MANET
11BCE111
KUNAL PRAJAPATI

2. Mobile Ad-Hoc Network
Mobile Ad-Hoc Network is collection of mobile nodes
which forms temporary network.
In Mobile Ad-Hoc Network node communicate in peer
to peer fashion.
 Nodes in MANET play both role of router and
terminal,
It is decentralized type of Wireless network.
It is self organizing network without need of fixed
network infrastructure and hence have dynamic
network topology.

3. Mobile Ad-Hoc Network
Communication between nodes in Mobile Ad-Hoc
Network network via radio communication.
Mobile Ad-Hoc Network supports anytime and
anywhere.
In general routes between nodes in an Mobile ad-hoc
network may include multiple hops and call such
network as multi-hop Mobile ad-hoc network.
It reduced Administrative cost.

4. Application of MANET
Mobile Ad-Hoc Network can increase mobility and
flexibility, as Mobile ad-hoc networks can be brought
up and torn down in a very short time.
Mobile Ad-Hoc Network can be more economical in
some case, as they eliminate fixed infrastructure
costs and reduces power consumption at mobile
nodes.
Mobile Ad-Hoc network can be more robust then
conventional wireless network because of their non-hierarchical
distributed control and management
mechanisms.

5. Vulnerability of MANET
Dynamic Topology
Wireless Links
Cooperativeness
Lack of clear line of defence
Limited resources

6. Threat Model
Identify the Security Objectives
Identify the application overview
Decompose Application
Identify Threat
Identify Vulnerability

7. Attacks on Mobile Ad-Hoc Network
Attacks on Mobile ad-hoc network can be classified
as active attacks or passive attacks. depending on
normal operation of network disrupted or not.
Passive Attack
Passive attacks is difficult to detect because of this
attacks normal operation of network is not affected.
This attack target confidentiality attribute of the
system.
Attacker snoops the data exchanged in network
without altering it.

8. Attacks on Mobile Ad-Hoc Network
Active Attack
In active attacks the intruders can modify the
packet,inject the packets, drops the packets.
It may disrupts the normal operation of the
network.
It confuses routing procedure and degrades network
performance.

9. Attacks on Ad-Hoc Network
Active Attack is classified as External Attack and Internal
Attack.
External Attack
Carried out by nodes that do not belong to the domain
of the network. Such attacks can be defended by using
source an Authentication, firewalls and encryption.
Internal Attack
Internal Attacks are from Compromised nodes which are
actually part of network.

10. Attacks at Routing layer
Black Hole Attack
Worm Hole Attack
Resource Consumption Attack
Rushing Attack
Routing Table Poisoning
Sybil attack

11. Attacks at Routing layer
Replay Attack
Sink Hole Attack
Link With Holding & Link Spoofing Attacks

12. Black Hole Attack

13. Thank
You
::GUIDED BY::
PROF. PARITA OZA