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The Apache web server must not be a proxy server.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-214241 | AS24-U1-000260 | SV-214241r612240_rule | Medium |
| Description |
|---|
| A web server should be primarily a web server or a proxy server but not both, for the same reasons that other multi-use servers are not recommended. Scanning for web servers that will also proxy requests into an otherwise protected network is a very common attack, making the attack anonymous. |
| STIG | Date |
|---|---|
| Apache Server 2.4 UNIX Server Security Technical Implementation Guide | 2022-01-27 |
Details
| Check Text ( C-15455r276983_chk ) |
|---|
| If the server is a proxy server and not a web server, this check is Not Applicable. In a command line, run "httpd -M | sort" to view a list of installed modules. If any of the following modules are present, this is a finding: proxy_module proxy_ajp_module proxy_balancer_module proxy_ftp_module proxy_http_module proxy_connect_module 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" Search for the directive "ProxyRequest" in the "httpd.conf" file. If the ProxyRequest directive is set to “On”, this is a finding. |
| Fix Text (F-15453r276984_fix) |
|---|
| Determine where the proxy modules are located by running the following command: grep -rl "proxy_module" <'INSTALL PATH'> Edit the file and comment out the following modules: proxy_module proxy_ajp_module proxy_balancer_module proxy_ftp_module proxy_http_module proxy_connect_module Comment out the ProxyRequext directive in the httpd.conf file. Restart Apache: apachectl restart |