[Security] Wat is een fragment attack?

[maarte]

Krijg steeds fragment attacks van iemand..
Wat is dat?

[freyk]

Dan zit het niet goed!
Als je nou google.nl had gebruikt, las je het volgende op pest patrol:

Exploit: A way of breaking into a system. An exploit takes advantage of a weakness in a system in order to hack it. Exploits are the root of the hacker culture. Hackers gain fame by discovering an exploit. Others gain fame by writing scripts for it. Legions of script-kiddies apply the exploit to millions of systems, whether it makes sense or not. Since people make the same mistakes over-and-over, exploits for very different systems start to look very much like each other. Most exploits can be classified under major categories: buffer overflow, directory climbing, defaults, Denial of Service.

When IP packets are broken into fragments, only the first packet contains complete header information. Many routers will filter packets based on this header information. Because there is not enough information in the secondary fragments, many routers let them through. Packets can be written and fragmented so that they can be successfully reassembled at the destination without the initial fragment. Attackers can use IP fragments to penetrate a network otherwise protected by packet filtering routers.

Je firewall heeft het volgens mij gestopt (anders weet je denk ik ook niet dat je een fragment attack 'ondergaat'), dus super veel zorgen hoef je je niet te maken. Wel zou ik de boel ff in de gaten houden en kijken of het steeds dezelfde attacker is