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OHS must have the LimitInternalRecursion directive 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-221508 OH12-1X-000293 SV-221508r879650_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 2022-12-09

Details

Check Text ( C-23223r415207_chk )
1. Open $DOMAIN_HOME/config/fmwconfig/components/OHS//httpd.conf and every .conf file (e.g., ssl.conf) included in it with an editor.

2. Search for the "LimitInternalRecursion" directive at the server, virtual host, and directory configuration scopes.

3. If the "LimitInternalRecursion" directive is omitted or is set greater than 55, this is a finding.
Fix Text (F-23212r415208_fix)
1. Open $DOMAIN_HOME/config/fmwconfig/components/OHS//httpd.conf and every .conf file (e.g., ssl.conf) included in it with an editor.

2. Search for the "LimitInternalRecursion" directive at the server and virtual host configuration scopes.

3. Set the "LimitInternalRecursion" directive to "55", add the directive if it does not exist.