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Apache/IIS/nginx Multiple HTTP Servers (Memory Exhaustion) DoS
[ 0Day-ID-20019 ]
Full title
Date add
Category
Platform
Verified
Price
0.005 BTC
500 USD
Risk
[Security Risk High
]Rel. releases
Description
The attack involves making requests to the web server via HTTP pipelining and closing the connection before receiving a response, it causes the thread/fork is not advised and continue processing the request (before attempting to send the response), the attack requires that the server has a significant delay to make more threads/forks with few connections and consume a maximum of resources.
The attack exploits the retransmissions and half closed states (CLOSE_WAIT, TIME_WAIT, FIN_WAIT, etc...) of the TCP stack.
Yes, this attack can be used for many other services, not just HTTP :D.
Recommendation: it's fun to attack with PHP files on the server :P
Why firewalls can not easily stop this attack?
Because we do not use too many connections "established" to cause DoS :D
Note: The effect of the attack may vary from server to server
TCP Stack: http://www.youtube.com/watch?v=aZvGZXiqx5I
The attack exploits the retransmissions and half closed states (CLOSE_WAIT, TIME_WAIT, FIN_WAIT, etc...) of the TCP stack.
Yes, this attack can be used for many other services, not just HTTP :D.
Recommendation: it's fun to attack with PHP files on the server :P
Why firewalls can not easily stop this attack?
Because we do not use too many connections "established" to cause DoS :D
Note: The effect of the attack may vary from server to server
TCP Stack: http://www.youtube.com/watch?v=aZvGZXiqx5I
Affected ver
Apache <= 2.4.3
IIS <= 8
nginx <= 1.3.9
and... others :P
IIS <= 8
nginx <= 1.3.9
and... others :P
Tested on
Apache 2.4.3 httpd2-prefork, etc...
Prooves Information
Video proof
Proof imgs
Other Information
Abuses
0
Comments
11
Views
28 819
We DO NOT use Telegram or any messengers / social networks! Please, beware of scammers!OR
13
0
Verified by 0day Admin
Verified by 0day Admin
This material is checked by Administration and absolutely workable.
This material is checked by Administration and absolutely workable.
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