Rapid7 Vulnerability & Exploit Database

Character Generator Traffic Amplification

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Character Generator Traffic Amplification

Severity
1
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:N)
Published
02/09/2014
Created
07/25/2018
Added
12/10/2014
Modified
12/10/2014

Description

A Character Generator (often just called chargen) is a service intended for testing, debugging and measurement purposes. Both the TCP and UDP variants simply send random characters upon receiving a connection from the client. When contacted over UDP, the responses can be 500x the size of the corresponding request and can be used to conduct traffic amplification attacks against other assets, typically in the form of distributed reflected denial of service (DRDoS) attacks.

Solution(s)

  • chargen-restrict

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