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many ways to look for hash collisions, such as birthday attacks for general attacks and the modulo difference method. These methods are used to attack the intermediate encounter attacks of hash schemes with a group chain structure, modify group attacks based on Modulo-arithmetic hash functions. Here I will briefly introduce the following four methods for finding a collision: Equals substrings Birthday attack
1. NTP reflection and amplification attacks, whether based on DNS or NTP, are ultimately based on UDP protocol. In the UDP protocol under normal circumstances, the client sends the request packet to the server side, the server returns the response packet to the client, but the UDP protocol is non-connected, so the client sends the source IP of the request package is easy to forge, when the source IP is modified to the victim's IP, the response packet returned by the end server will return to the
In this article we will explore the theory and demonstration of session hijacking, and discuss related detection and defense techniques. IntroductionIn the previous two articles we discussed the ARP cache poisoning and DNS spoofing separately, as shown in the previous example, we can see that the man-in-the-middle attack is a very effective form of attack and more and more difficult to detect. In this arti
Recently, hashtable collision attacks (HashtablecollisionsasDOSattack) have been raised, and various languages have been involved. This article combines the PHP kernel source code to talk about the principles and implementation of such attacks. For more information, see the following illustration to show you how to explore the PHP kernel: hash table collision attack principles. RecentHash table collision attack
Getting Started with XSS attacksXSS represents the Cross site Scripting (span scripting attack), which is similar to a SQL injection attack where SQL statements are used as user input to query/modify/delete data, and in an XSS attack, by inserting a malicious script, Implement control of the user's browser.There are two types of XSS attacks: Non-persiste
Introduction Not long ago, I published a blog post on the Raidersec blog about how to use Python and Scapy to bypass authentication attacks. I am very happy to write this article because I have not only learned how to use the aircrack suite, but also have the opportunity to deeply understand the differences in the operating methods of wireless attacks. Therefore, as mentioned in this Article, this blog article will introduce a series of short and concise blog articles discussing how to use Pytho
action behavior 3> threat of network security Non-authorized access: unauthorized access to related data Information disclosure or loss: information leaked or lost during transmission Corrupted data integrity: Data was modified during transmission Denial of service attack: by sending a large number of packets to the server, consuming the resources of the server, making the server unable to provide services Using network to spread computer virus
First, XSSCross Site script attackA malicious attacker inserts malicious script code into a Web page, and when the user browses to the page, the script code embedded inside the Web is executed to achieve the intent of the malicious attacker.1. Reflected XSSA reflection-based XSS attack relies primarily on the site server to return the script, triggering execution on the client side to initiate a web attack.
absrtact: with the rapid development of computer network technology, network security has become more and more people's attention, the form of network attacks are various, many worms, trojan viruses, such as implanted into some Web pages, to network users brought a great security risk. Where XSS cross-site scripting attacks, malicious attackers into the Web page to insert malicious HTML code, when users browse the page, embedded inside the Web HTML code will be executed, so as to achieve the spe
As TCP/IP is the basic protocol of the Internet, it is necessary to improve the TCP/IP protocol. From the beginning, the TCP/IP protocol did not take into account so many threats on the current network, resulting in many different types of attack methods, which are generally aimed at protocol principles (especially DDOS) attacks) we are powerless. The common principles of TCP/IP attacks are described as follows: (1) Source Address Spoofing, IP Spoofin
A high foot, a high foot. With the development of the network, more and more hacker attack methods are available. However, many attack methods may require DoS attacks. In other words, DoS attacks are a prerequisite for initiating other attacks. For example, a denial-of-service attack causes the DNS server to crash, and then DNS spoofing. A few days ago, the Baidu
In this article, we will discuss the theory and demonstration of session hijacking and discuss related detection and defense techniques. Introduction In the previous two articles, we discussed ARP cache poisoning and DNS Spoofing respectively. From the examples shown above, we can see that man-in-the-middle attacks are very effective forms of attacks, and is increasingly difficult to detect. In this article, we will discuss the theory and demonstration of session hijacking attacks, and discuss r
-11-19 10:44:26--/2797 Turkey 88.229.12.40--2010-11-19 06:57:46--/6792 Turkey 88.234.193.11--2010-11-19 08:25:42--/5895 Turkey 88.236.78.79--2010-11-19 15:01:54--/170 Turkey 88.238.26.12--2010-11-19 05:21:46--/473 Turkey 88.238.26.154--2010-11-19 05:31:58--/1683 Turkey 88.242.124.128--2010-11-19 06:53:56--/8401 Turkey 88.242.65.61--2010-11-19 08:38:41--/1204 Turkish program caught 94.122.20.157--2010-11-19 09:53:39--/1917 Turkish American program caught 94.54.37.54--2010-11-19 02:44:07--/1096 Tu
General Introduction Simple description of what an XSS attack is How to find an XSS vulnerability General ideas for XSS attacks Attacks from within: How to find an internal XSS vulnerability How to construct an attack How to use What instance of the attack, such as Dvbbsbbsxp Attacks from the outside How to construct an XSS a
Introduction to DDoS The most common attack is a distributed denial of service (DDoS) attack on a Web site. In a typical DDoS attack, an attacker consumes service resources by sending a large amount of data to the server. To prevent access to other users. If a hacker uses JavaScript DDoS attacks, then any computer can become a broiler, making the potential
Although there are many previous articles that discuss SQL injection, the content discussed today may help you check your server and take precautions. TSE, you can win. The first thing to understand is what kind of SQL injection attack is. Looking at recent security incidents and their aftermath, security experts have come to the conclusion that these threats are mainly caused by SQL injection. Although there are many previous articles that discuss SQ
suddenly rise, looked at the ranking, "Wu Move the Universe" This word incredibly to the Baidu home page, so in the article inserted links, many sites to collect, get a lot of outside the chain. By March, the site incredibly to the second home page Baidu, although only persisted for three days, immediately fell to the fifth, but those days every day has 100,000 IP, at that time cut a map (with the plug-in of shielding ads, so no promotional links). The website traffic is big, some peo
1. PrefaceFebruary 28, the Memcache server was exposed to the presence of UDP reflection amplification attack vulnerability. An attacker could exploit this vulnerability to initiate a large-scale DDoS attack, which could affect the network's uptime. The vulnerability is due to the way that the Memcache server UDP protocol supports the insecure, default configuration in which UDP ports are exposed to externa
No Password Attack required for Microsoft SQL Server In a recent penetration test, some unencrypted Microsoft SQL Server (MSSQL) traffic was found in some of the packets we captured. At first, we thought that we could sniff the authentication credential directly. However, MSSQL encrypts the authentication traffic, which means that we need to decrypt it before obtaining the authentication credential. If a self-signed certificate is installed, it is eas
I. Video learning content 1. Stress testingThe stress test is to obtain the maximum service level test that the system can provide by determining the bottleneck of a system or the performance points that cannot be received. In layman's terms, stress testing is to take place under what conditions your application's performance will become unacceptable.The Kali pressure test tool includes four classifications for VoIP stress testing, web stress testing, network stress testing, and wireless stress
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