The Principles of Modern Attacks Analysis for Penetration Tester (original) (raw)
Survey Of DDoS Attacks Based On TCP/IP Protocol Vulnerabilities
Distributed denial-of-service (DDoS) attacks are one of the key threats and perhaps the toughest security problem for today's Internet.Distributed Denial of Service (DDoS) attack has become a stimulating problem to the availability of resources in computer networks.With brief or no advance warning, a DDoS attack can easily drain the computing and communication resources of its victim within a short period of time. In this paper, DDoS attacks based on the protocols vulnerabilities in the TCP/IP model, their impact on available resources viz CPU,memory,buffer space is investigated. This paper aims to provide a better understanding of the existing tools,methods and comparative analysis of them,and defense mechanisms.
Don't Forget to Lock the Back Door! A Characterization of IPv6 Network Security Policy
There is growing operational awareness of the challenges in securely operating IPv6 networks. Through a measurement study of 520,000 dual-stack servers and 25,000 dual-stack routers, we examine the extent to which security policy codified in IPv4 has also been deployed in IPv6. We find several high-value target applications with a comparatively open security policy in IPv6 including: (i) SSH, Telnet, SNMP, are more than twice as open on routers in IPv6 as they are in IPv4; (ii) nearly half of routers with BGP open were only open in IPv6; and (iii) in the server dataset, SNMP was twice as open in IPv6 as in IPv4. We conduct a detailed study of where port blocking policy is being applied and find that protocol openness discrepancies are consistent within network boundaries, suggesting a systemic failure in organizations to deploy consistent security policy. We successfully communicate our findings with twelve network operators and all twelve confirm that the relative openness was unintentional. Ten of the twelve immediately moved to deploy a congruent IPv6 security policy, reflecting real operational concern. Finally, we revisit the belief that the security impact of this comparative openness in IPv6 is mitigated by the infeasibility of IPv6 network-wide scanning. We find that, for both of our datasets, host addressing practices make discovering these high-value hosts feasible by scanning alone. To help operators accurately measure their own IPv6 security posture, we make our probing system publicly available.
ICMPv6 Flood Attack Detection using DENFIS algorithms
This paper proposed ICMPv6 Flood Attack Detection using DENFIS algorithms to detect denial of service (DoS) attacks in IPv6 networks. We developed C# application to send the ICMPv6 flood attack packets the flooding packets were generated using different attack rates starting from 1000 Pings to 1500 Pings, and the normal traffic packets were generated using different ping rates starting from 10 Pings to 15 Pings, for each ICMPv6 Packet, RTT was calculated. The dataset consists of 2000 recorded, which divided into two sets: 80% for training and 20% for testing, the proposed proved that we can detect ICMPv6 Flood Attack with low root mean square error which about 0.26.
Risk Analysis of the Implementation of IPv6 Neighbor Discovery in Public Network
—Internet is ubiquitous, and in recent times its growth has been exponential. This rapid growth caused the depletion of the current Internet Protocol version 4 (IPv4) address, prompting IETF with the design of the new Internet Protocol version 6 (IPv6) in the 1990's. IPv6 is the next generation of the Internet Protocol designed with much larger address space and additional functions to ease its use for the users. One of the new functions is address auto configuration of new host's via Neighbor Discovery Protocol (NDP). However, the implementation of NDP is not without risk in terms of security. This paper analyzes the risk of NDP implementation in public network. The result shows a number of risks that appear on the implementation of NDP over a Public Network. Neighbors cannot be trusted 100%. One of them could be an attacker who may exploit the NDP message to get their own benefit. In addition the number of insiders increases time to time.
A Broad Overview of Denial of Service Attack
Denial of Service attack is one of the most talked about phenomenon in Internet security domain This attacks are meant to make a victim’s system’s resource such as network bandwidth or cpu unavailable to serve it purpose .Origin of attacks which are classified as Denial of Service dates back to 1998[1] but still this type of attack are not entirely tamed as the tools or techniques that are being used to deliver this type of attack continues to evolve with time and thus enforcing research community to continue to look for better approaches and method to counter them..In this paper I discuss in detail about the threat of Denial of service attack, the strategies that this attacks deploy and the counter strategies against them
A dual Stack IPv4/IPv6 Testbed for Malware detection in IPv6 Networks
The exhaustion of IPv4 addresses on November 2011 has made the future of the internet in the IPv6 and raised new challenges in the network security research. This paper proposed a dual stack ipv4/ipv6 network testbed for dealing with the designation and implementation of an intelligent approach for malware detection in IPv6 networks. All the equipments, tools and network are configured based on real implementation of a dual stack ip4/ipv6 network. With fully functional operation for handling basic transition between IPv6 clients over IPv4 networks, the dual stack IPV4/IPv6 testbed is suitable for investigating the malware detection in real ipv6 networks. The experimental results from the testing phase show the efficiency and the functionality of the dual stack IPv4/IPv6 testbed.
Defeating the Distributed Denial of Service Attack in Cloud Environment: A Survey
IEEE, 2017
Cloud computing technologies are elaborated and popularized the power, networking, communications and storage speculated the human race to procreate process and share digital information to new demand for more impressive computing infrastructure. Although the Cloud computing is a very promising and challenging internet based computing infrastructure, Distributed Denial of Service (DDoS) is the one of the main attack. This attack can accord the obtainability of the assistance and can be conveniently initiated, it leads to financial damages or affecting the notoriety and this attack is tricky to detect and filter. With respect to the above scenario the detailed survey is made in this paper which focuses on different defeating mechanisms of DDoS attacks such as Detection Techniques, Filtering Techniques and Traceback.
2011
This document describes a bi-directional IPv6/IPv4 Socket Layer Translator (SLT) for border gateway routers. The new technique is called AIN-SLT which stands for Assuring Interconnection between Heterogeneous (IPv4/IPv6) Networks Using SLT. This mechanism assures a smooth heterogeneous communication between IPv6 and IPv4 nodes without using protocol translation. It applies IPv6/IPv4 socket Application Programming Interface (API) translation methodology between two heterogeneous networks by terminating IPv6/IPv4 connection points at the application layer. The AIN-SLT mechanism has many advantages over current translation/tunneling approaches, and so it does not require any configuration at end-users' hosts, it has the ability to translate non-NAT friendly traffic (i.e. FTP and SIP traffic), and it achieves a reliable communication by not breaking end-to-end protocol characteristics and security at physical layer (i.e. IPsec).
Analysis of Different IP Traceback Techniques
Internet usage is increasing day by day as well as the attacks on the sites. Distributed denial of service (DDoS) is one of the such type of attacks. DDoS disable the server by flooding invalid requests with invalid or spoofed addresses, due to this the server " s buffer gets overloaded and bandwidth of server get exhausted and server stop its services. Left undetected, can be very dangerous to the entire network. If organizations can detect these types of attack in advance then organizations will be saved from loss of these attacks, there is much prevention techniques which can detect these types of attack but while choosing one of these technique questions arise which technique should be used? Which is the best? IP Traceback technique is a DDoS detection technique, which is used to trace the path of an IP packet to its origin so one can find out the true identity of the attacker and can detect the path characteristics. Different types of IP Traceback Techniques are available. In this paper we study different IP Traceback techniques.