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V-214284

Users and scripts running on behalf of users must be contained to the document root or home directory tree of the Apache web server.

Finding ID
AS24-U2-000350
Rule ID
SV-214284r612241_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-APP-000141-WSR-000087
CCI
CCI-000381
Target Key
(None)
Documentable
No
Discussion

A web server is designed to deliver content and execute scripts or applications on the request of a client or user. Containing user requests to files in the directory tree of the hosted web application and limiting the execution of scripts and applications guarantees that the user is not accessing information protected outside the application's realm. The web server must also prohibit users from jumping outside the hosted application directory tree through access to the user's home directory, symbolic links or shortcuts, or through search paths for missing files.

Fix Text

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 root directory directive as follows: <Directory> ... Require all denied ... </Directory> Remove any "Deny" and "Allow" directives from the root <Directory> element. Restart Apache: apachectl restart

Check Content

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" Verify there is a single "Require" directive with the value of "all denied". Verify there are no "Allow" or "Deny" directives in the root <Directory> element. The following may be useful in extracting root directory elements from the Apache configuration for auditing: # perl -ne 'print if /^ *<Directory *\//i .. /<\/Directory/i' $APACHE_PREFIX/conf/httpd.conf If there are "Allow" or "Deny" directives in the root <Directory> element, this is a finding.