Flux rss

Teardrop attack

Fragment attack

A "fragment attack" is a network saturation (denial-of-service) attack that exploits the fragmentation principle of the IP protocol.

The IP protocol is used to fragment large packets into several IP packets each having a sequence number and a common identification number. When receiving data, the recipient reassembles the packets thanks to the offset values they contain.

The most famous fragment attack is the Teardrop attack. The principle of the Teardrop attack involves inserting false offset information into fragmented packets. As a result, during reassembly, there are empty or overlapping fragments that can cause the system to be unstable.

Recent systems are no longer vulnerable to this attack.

More information



Last update on Thursday October 16, 2008 02:43:15 PM.
This document entitled « Teardrop attack » from Kioskea (en.kioskea.net) is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the licence, as this note appears clearly.

Results for

Attack - SYN attack The "SYN attack" (also called "TCP/SYN Flooding") is a network saturation (denial-of-service) attack that exploits the Three-way handshake mechanism of the TCP protocol. The three-way handshake is the way in which any "reliable" internet connection... en.kioskea.net/attaques/attaque-syn.php3
Attacks - Web server attack The first network attacks exploited vulnerabilities related to the implementation of TCP/IP protocol suites. With the gradual correction of these vulnerabilities, attacks have shifted to application layers and particularly the web, given that most... en.kioskea.net/attaques/attaques-web.php3
Attacks - Man in the middle "Replay" attacks are "Man in the middle" attacks that involve intercepting data packets and replaying them, that is, resending them as is (with no decryption) to the receiving server. As a result, depending on the context, the hacker can benefit from... en.kioskea.net/attaques/rejeu.php3

Results for

Do I need a firewall and where can I get one?Firewalls are absolutely necessary if you use a broadband connection (DSL, Cable, Satellite, etc.). Their aim is to protect you from intrusion and attack from others on the Internet. If you have Windows XP or Vista there is a built in firewall you can... en.kioskea.net/faq/sujet-14-do-i-need-a-firewall-and-where-can-i-get-one
The First Steps to Virus/Spyware/Adware RemovalThe First Steps to Virus/Spyware/Adware Removal Step 1: Delete Temporary Files How to delete Temporary Files? How to delete Temporary Internet Files? Step 2: Get a good all in one Antivirus/Anti Spyware/ Anti Adware... en.kioskea.net/faq/sujet-205-the-first-steps-to-virus-spyware-adware-removal
Voir les réponses

Results for

Download Clean Virus MSNViruses meet hereafter a bit on the net by all thinkable means everywhere. After mails , supporting they attack instantaneous freight forwarding. Clean Virus MSN is a tool which discerns automatically the viruses which circulate on MSN Messenger.... en.kioskea.net/telecharger/telecharger-992-clean-virus-msn
Download Blink Personal EditionWith the spread of numerous viruses and other spywares on the Web and other interfaces, it is more careful to take all possible protection. Blink Personal Edition is a program allowing to reduce risks of exhibition to the various attacks which can... en.kioskea.net/telecharger/telecharger-555-blink-personal-edition
Download RogueRemoverInternet is a huge portal in information who can be advantageous, but also harmful. Programs like anti-viruses, while all things considered they are them attacks. These last reduce the performance of your computer. RogueRemover is a utility that can... en.kioskea.net/telecharger/telecharger-239-rogueremover
Voir les réponses

Results for

Marshall Islands email paralysed by 'zombie' attackEmail communication in the Marshall Islands was paralysed after hackers launched a "zombie" computer attack on the western Pacific nation's only Internet service provider, officials said. Email communication in the Marshall Islands was paralysed... en.kioskea.net/actualites/marshall-islands-email-paralysed-by-zombie-attack-10479-actualite.php3
NATO boosts cyber-attack response force: senior officialA man is looking at his computer screen. NATO has put in place special emergency response teams to deal with cyber terrorism following a serious attack on member state Estonia last year, a senior official said on Friday. NATO has put in place special... en.kioskea.net/actualites/nato-boosts-cyber-attack-response-force-senior-official-10266-actualite.php3
NATO launches cyber defence centre in EstoniaNATO launched Wednesday a new cyber-defence training centre in Tallinn to defend against attacks over the Internet, a year after Estonia fell victim to a "cyber-war" blamed on Russian hackers. "The need for a cyber-defence centre to be opened today... en.kioskea.net/actualites/nato-launches-cyber-defence-centre-in-estonia-10374-actualite.php3
Voir les réponses

Results for

Attacks - Ping of death attack The ping of death attack is one of the oldest network attacks. The principle of ping of death simply involves creating an IP datagram whose total size exceeds the maximum authorized size (65,536 bytes). When such a packet is sent to a system with a... en.kioskea.net/attaques/attaque-ping-de-la-mort.php3
Attacks - Denial of service attacks A "denial-of-service attack" (abbreviated DoS) is a type of attack that aims to make an organization's services or resources unavailable for an indefinite amount of time. Most of the time, these attacks are aimed at a company's servers, so they may... en.kioskea.net/attaques/dos.php3
Attacks - LAND Attack The "LAND attack" is a network attack dating from 1997 using IP address spoofing to exploit a flaw on some TCP/IP protocol implementations in systems. The name of this attack comes from the name given to the first distributed source code (called... en.kioskea.net/attaques/attaque-land.php3
Voir les réponses