AS24-U1-000520 - The Apache web server must generate a session ID using as much of the character set as possible to reduce the risk of brute force.
Generating a session identifier (ID) that is not easily guessed through brute force is essential to deter several types of session attacks. By knowing the session ID, an attacker can hijack a user session that has already been user-authenticated by the hosted application. The attacker does not need to guess user identifiers and passwords or have a secure token since the user session has already been authenticated. By generating session IDs that contain as much of the character set as possible, i.e., A-Z, a-z, and 0-9, the session ID becomes exponentially harder to guess. Satisfies: SRG-APP-000223-WSR-000145, SRG-APP-000224-WSR-000135, SRG-APP-000224-WSR-000136, SRG-APP-000224-WSR-000138
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' Load the 'unique_id_module'. Example: LoadModule unique_id_module modules/mod_unique_id.so Restart Apache: apachectl restart