The Apache web server private website must employ cryptographic mechanisms (TLS) and require client certificates.

From Apache Server 2.4 Windows Site Security Technical Implementation Guide

Part of SRG-APP-000429-WSR-000113

Associated with: CCI-002476

AS24-W2-000810_rule The Apache web server private website must employ cryptographic mechanisms (TLS) and require client certificates.

Vulnerability discussion

When data is written to digital media, such as hard drives, mobile computers, external/removable hard drives, personal digital assistants, flash/thumb drives, etc., there is risk of data loss and data compromise. User identities and passwords stored on the hard drive of the hosting hardware must be encrypted to protect the data from easily being discovered and used by an unauthorized user to access the hosted applications. The cryptographic libraries and functionality used to store and retrieve the user identifiers and passwords must be part of the web server.

Check content

In a command line, navigate to <'INSTALL PATH'>\bin. Run "httpd -M" to view a list of installed modules. If "ssl_module" is not listed, this is a finding. Review the SSL sections of the <'INSTALLED PATH'>\conf\httpd.conf file. All enabled "SSLProtocol" directives must be set to "ALL -SSLv2 -SSLv3". If "SSLProtocol" is not set to the proper value, this is a finding. All enabled "SSLEngine" directives must be set to "On". If they are not, this a finding. NOTE: In some cases, web servers are configured in an environment to support load balancing. This configuration most likely uses a content switch to control traffic to the various web servers. In this situation, the TLS certificate for the websites may be installed on the content switch versus the individual websites. This solution is acceptable as long as the web servers are isolated from the general population LAN. Users should not have the ability to bypass the content switch to access the websites.

Fix text

Edit the <'INSTALLED PATH'>\conf\httpd.conf file and set the "SSLProtocol" to "ALL -SSLv2 -SSLv3". Set the "SSLEngine" parameter to "On".

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