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V-240069

CAT II (Medium)

HAProxy must limit the amount of time that half-open connections are kept alive.

Rule ID

SV-240069r879650_rule

STIG

VMW vRealize Automation 7.x HA Proxy Security Technical Implementation Guide

Version

V1R2

CCIs

CCI-001094

Discussion

A web server can limit the ability of the web server being used in a DoS attack through several methods. The methods employed will depend upon the hosted applications and their resource needs for proper operation. An example setting that could be used to limit the ability of the web server being used in a DoS attack is to limit the amount of time that a half-open connection is kept alive.

Check Content

At the command prompt, execute the following command:

grep 'timeout client-fin' /etc/haproxy/haproxy.cfg

If the return value for "timeout client-fin" list is not set to "30s", this is a finding.

Fix Text

Navigate to and open /etc/haproxy/haproxy.cfg   

Configure the haproxy.cfg file with the following value in the defaults section: 

'timeout client-fin 30s'.