OHS must have the ListenBacklog properly set to restrict the ability of users to launch Denial of Service (DoS) attacks against other information systems or networks.

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OHS must have the ListenBacklog properly set to restrict the ability of users to launch Denial of Service (DoS) attacks against other information systems or networks.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-221502	OH12-1X-000287	SV-221502r415191_rule		Medium

Description
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 bandwidth throttling.

STIG	Date
Oracle HTTP Server 12.1.3 Security Technical Implementation Guide	2021-12-29

Details

Check Text ( C-23217r415189_chk )
1. Open $DOMAIN_HOME/config/fmwconfig/components/OHS//httpd.conf with an editor. 2. Search for the "ListenBacklog" directive at the OHS server configuration scope. 3. If the directive is omitted or set less than the value of the Maximum Syn Connection Backlog network parameter of the OS, this is a finding.

Fix Text (F-23206r415190_fix)
1. Open $DOMAIN_HOME/config/fmwconfig/components/OHS//httpd.conf with an editor. 2. Search for the "ListenBacklog" directive at the OHS server configuration scope. 3. Set the "ListenBacklog" directive to a value equal to the Maximum Syn Connection Backlog network parameter of the OS; add the directive if it does not exist.