STIGQter: STIG Summary: Apache Server 2.4 UNIX Site Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 22 Jan 2021:

The Apache web server must only accept client certificates issued by DoD PKI or DoD-approved PKI Certification Authorities (CAs).

DISA Rule

SV-214300r612241_rule

Vulnerability Number

V-214300

Group Title

SRG-APP-000427-WSR-000186

Rule Version

AS24-U2-000810

Severity

CAT II

CCI(s)

• CCI-002470 - The information system only allows the use of organization-defined certificate authorities for verification of the establishment of protected sessions.

Weight

10

Fix Recommendation

Configure the web server’s trust store to trust only DoD-approved PKIs (e.g., DoD PKI, DoD ECA, and DoD-approved external partners).

Check Contents

In a command line, run "httpd -M | grep -i ssl_module".

If the "ssl_module" is not found, this is a finding.

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"

Search for the "SSLCACertificateFile" directive:

# cat /<path_to_file>/httpd.conf | grep -i "SSLCACertificateFile"

Review the path of the "SSLCACertificateFile" directive.

Review the contents of <'path of SSLCACertificateFile'>\ca-bundle.crt.

Examine the contents of this file to determine if the trusted CAs are DoD approved.

If the trusted CA that is used to authenticate users to the website does not lead to an approved DoD CA, this is a finding.

NOTE: There are non-DoD roots that must be on the server for it to function. Some applications, such as antivirus programs, require root CAs to function. DoD-approved certificate can include the External Certificate Authorities (ECA) if approved by the AO. The PKE InstallRoot 3.06 System Administrator Guide (SAG), dated 08 Jul 2008, contains a complete list of DoD, ECA, and IECA CAs.

Vulnerability Number

V-214300

Documentable

False

Rule Version

AS24-U2-000810

Severity Override Guidance

In a command line, run "httpd -M | grep -i ssl_module".

If the "ssl_module" is not found, this is a finding.

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"

Search for the "SSLCACertificateFile" directive:

# cat /<path_to_file>/httpd.conf | grep -i "SSLCACertificateFile"

Review the path of the "SSLCACertificateFile" directive.

Review the contents of <'path of SSLCACertificateFile'>\ca-bundle.crt.

Examine the contents of this file to determine if the trusted CAs are DoD approved.

If the trusted CA that is used to authenticate users to the website does not lead to an approved DoD CA, this is a finding.

NOTE: There are non-DoD roots that must be on the server for it to function. Some applications, such as antivirus programs, require root CAs to function. DoD-approved certificate can include the External Certificate Authorities (ECA) if approved by the AO. The PKE InstallRoot 3.06 System Administrator Guide (SAG), dated 08 Jul 2008, contains a complete list of DoD, ECA, and IECA CAs.

Check Content Reference

M

Target Key

3997

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