Slow HTTP Denial of Service Attack Vulnerability solution, denialattack

Source: Internet
Author: User

Slow HTTP Denial of Service Attack Vulnerability solution, denialattack

Question Name:

Slow HTTP Denial of Service Attack

Problematic URL

Http: // 10. 238. *. *: 58 ***

 

Risk Level:

High

Problem type:

Server Configuration

Vulnerability description:

When using http post: POST, specify a very large

Content-length, and then send packets at a very low speed, such as sending a byte within 10-S, hold the connection to continue opening. In this way, when the client connection is too large, all available webserver connections are occupied, resulting in DOS.

Solution:

Limit the maximum http header transmission license time of the web server to 20 seconds.

Phase

Off

Internal

Capacity

Solution: Find the file server. xml under tomacat and find the following information,

 

The original value is 20000, and the value is changed to 20. Restart the service.

From: gs-utrapower-zyr time: 20150602

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