Check: AS24-U1-000310
Apache Server 2.4 UNIX Server STIG:
AS24-U1-000310
(in versions v2 r7 through v2 r4)
Title
The Apache web server must allow the mappings to unused and vulnerable scripts to be removed. (Cat II impact)
Discussion
Scripts allow server-side processing on behalf of the hosted application user or as processes needed in the implementation of hosted applications. Removing scripts not needed for application operation or deemed vulnerable helps to secure the web server. To ensure scripts are not added to the web server and run maliciously, script mappings that are not needed or used by the web server for hosted application operation must be removed.
Check Content
Determine the location of the "HTTPD_ROOT" directory and the "httpd.conf" file: # apachectl -V | egrep -i 'httpd_root|server_config_file' -D HTTPD_ROOT="/etc/httpd" -D SERVER_CONFIG_FILE="conf/httpd.conf" Note: The apachectl front end is the preferred method for locating the Apache httpd file. For some Linux distributions, "apache2ctl -V" or "httpd -V" can also be used. Locate "cgi-bin" files and directories enabled in the Apache configuration via "Script", "ScriptAlias" or "ScriptAliasMatch", and "ScriptInterpreterSource" directives: # cat /<path_to_file>/httpd.conf | grep -i "Script" If any scripts are present that are not needed for application operation, this is a finding. If this is not documented and approved by the Information System Security Officer (ISSO), this is a finding.
Fix Text
Determine the location of the "HTTPD_ROOT" directory and the "httpd.conf" file: # apachectl -V | egrep -i 'httpd_root|server_config_file' -D HTTPD_ROOT="/etc/httpd" -D SERVER_CONFIG_FILE="conf/httpd.conf" Review "Script", "ScriptAlias" or "ScriptAliasMatch", and "ScriptInterpreterSource" directives. Go into each directory and locate "cgi-bin" files. Remove any script that is not needed for application operation. Ensure this process is documented and approved by the ISSO.
Additional Identifiers
Rule ID: SV-214244r881427_rule
Vulnerability ID: V-214244
Group Title: SRG-APP-000141-WSR-000082
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000381 |
The organization configures the information system to provide only essential capabilities. |
Controls
Number | Title |
---|---|
CM-7 |
Least Functionality |