Details
The web server must be configured to listen on a specified IP address and port. Without specifying an IP address and port for the web server to use, the web server will listen on all IP addresses available to the hosting server. If the web server has multiple IP addresses, i.e., a management IP address, the web server will also accept connections on the management IP address.
Accessing the hosted application through an IP address normally used for non-application functions opens the possibility of user access to resources, utilities, files, ports, and protocols that are protected on the desired application IP address.
Satisfies: SRG-APP-000142-WSR-000089, SRG-APP-000176-WSR-000096
Solution
Determine the location of the ‘HTTPD_ROOT’ directory and the ‘httpd.conf’ file:
# httpd -V | egrep -i ‘httpd_root|server_config_file’
-D HTTPD_ROOT=’/etc/httpd’
-D SERVER_CONFIG_FILE=’conf/httpd.conf’
Set the ‘Listen’ directive to listen on a specific IP address and port.
Restart Apache: apachectl restart
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management, Identification and Authentication.This control applies to the following type of system Unix.
References
- 800-53|CM-7b.
- 800-53|IA-5(2)(b)
- CAT|II
- CCI|CCI-000186
- CCI|CCI-000382
- Rule-ID|SV-214246r612240_rule
- STIG-ID|AS24-U1-000360
- STIG-Legacy|SV-102749
- STIG-Legacy|V-92661
- Vuln-ID|V-214246