AS24-U2-000640 - Debugging and trace information used to diagnose the Apache web server must be disabled.

Information

Information needed by an attacker to begin looking for possible vulnerabilities in a web server includes any information about the Apache web server and plug-ins or modules being used. When debugging or trace information is enabled in a production web server, information about the web server, such as web server type, version, patches installed, plug-ins and modules installed, type of code being used by the hosted application, and any backends being used for data storage, may be displayed. Since this information may be placed in logs and general messages during normal operation of the Apache web server, an attacker does not need to cause an error condition to gain access to this information.

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'

Add or set the value of 'TraceEnable' to 'Off'.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Apache_Server_2-4_UNIX_Y22M01_STIG.zip

Item Details

Category: SYSTEM AND INFORMATION INTEGRITY

References: 800-53|SI-11a., CAT|II, CCI|CCI-001312, Rule-ID|SV-214294r612241_rule, STIG-ID|AS24-U2-000640, STIG-Legacy|SV-102895, STIG-Legacy|V-92807, Vuln-ID|V-214294

Plugin: Unix

Control ID: dc82e733a79d8dcd88ef98b416cc9cea4145713a9980fd8f9b8c4342e65fccbb