Check: WG342 A24
Apache Site 2.4 Unix:
WG342 A24
(in version v1 r1)
Title
Public web servers must use TLS if authentication is required. (Cat II impact)
Discussion
Transport Layer Security (TLS) is optional for a public web server. However, if authentication is being performed, then the use of the TLS protocol is required. Without the use of TLS, the authentication data would be transmitted unencrypted and would become vulnerable to disclosure. Using TLS along with DoD PKI certificates for encryption of the authentication data protects the information from being accessed by all parties on the network. To further protect the authentication data, the web server must use a FIPS 140-2 approved TLS version and all non-FIPS-approved SSL versions must be disabled. FIPS 140-2 approved TLS versions include TLS V1.0 or greater. NIST SP 800-52 specifies the preferred configurations for government systems.
Check Content
Enter the following command: httpd -M | grep -i ssl This will provide a list of all the loaded modules. Verify that the “ssl_module” is loaded. If this module is not found, determine if it is loaded as a dynamic module. Enter the following command: find / -name httpd.conf -print -exec grep -H -i ^LoadModule {} \; If the SSL module is not enabled this is a finding. After determining that the ssl module is active, enter the following command to review the SSL directives. find / -name httpd.conf -print -exec grep -H -i ssl {} \; Review the SSL section(s) of the httpd.conf file, all enabled SSLProtocol directives must be set to "TLSv1" or this is a finding. All enabled SSLEngine directives must be set to “on”, if not this is a finding. NOTE: In some cases web servers are configured in an environment to support load balancing. This configuration most likely utilizes a content switch to control traffic to the various web servers. In this situation, the TLS certificate for the web sites may be installed on the content switch vs the individual web sites. 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 web sites.
Fix Text
Edit the httpd.conf file and set the SSLProtocol to "TLSv1". The SSLEngine parameter must also be set to On.
Additional Identifiers
Rule ID:
Vulnerability ID: V-13694
Group Title:
Expert Comments
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