Difference between revisions of "SSL"

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m (References)
(SSL range ciphers)
Line 151: Line 151:
 
* TLS_RSA_WITH_AES_256_CBC_SHA256
 
* TLS_RSA_WITH_AES_256_CBC_SHA256
 
* TLS_RSA_WITH_AES_128_GCM_SHA256
 
* TLS_RSA_WITH_AES_128_GCM_SHA256
 +
* TLS_RSA_WITH_3DES_EDE_CBC_SHA (enabled -> disabled per https://pagure.io/dogtagpki/issue/2821)
  
 
Enabled:
 
Enabled:
  
* TLS_RSA_WITH_3DES_EDE_CBC_SHA
 
 
* TLS_RSA_WITH_AES_128_CBC_SHA
 
* TLS_RSA_WITH_AES_128_CBC_SHA
 
* TLS_RSA_WITH_AES_256_CBC_SHA
 
* TLS_RSA_WITH_AES_256_CBC_SHA

Revision as of 19:01, 30 January 2018

Overview

This page describes the SSL configuration used by PKI. The SSL configuration is stored in /var/lib/pki/pki-tomcat/conf/server.xml as part of TomcatJSS configuration.

Default SSL Configuration

By default PKI will use the following SSL configuration.

General configuration

  • Strict ciphers: true
  • Client certificate authentication: want
  • server cert nickname file: /var/lib/pki/pki-tomcat/conf/serverCertNick.conf
  • password file: /var/lib/pki/pki-tomcat/conf/password.conf
  • password class: org.apache.tomcat.util.net.jss.PlainPasswordFile
  • NSS database: /var/lib/pki/pki-tomcat/alias

OCSP

  • OCSP: enabled
  • OCSP responder URL: http://$HOSTNAME:9080/ca/ocsp
  • OCSP responder certificate: ocspSigningCert cert-pki-ca
  • Cache size: 1000
  • Minimum cache entry duration: 60 seconds
  • Maximum cache entry duration: 120 seconds
  • Timeout: 10 seconds

SSL options

  • SSL2: disabled
  • SSL3: disabled
  • TLS: enabled

Note: If the SSL range ciphers parameters are defined, the SSL options parameters will be ignored.

SSL2 ciphers

Disabled:

  • SSL2_RC4_128_WITH_MD5
  • SSL2_RC4_128_EXPORT40_WITH_MD5
  • SSL2_RC2_128_CBC_WITH_MD5
  • SSL2_RC2_128_CBC_EXPORT40_WITH_MD5
  • SSL2_DES_64_CBC_WITH_MD5
  • SSL2_DES_192_EDE3_CBC_WITH_MD5

Enabled: none

SSL3 ciphers

Disabled:

  • SSL3_FORTEZZA_DMS_WITH_NULL_SHA
  • SSL3_FORTEZZA_DMS_WITH_RC4_128_SHA
  • SSL3_RSA_EXPORT_WITH_RC4_40_MD5
  • SSL3_RSA_WITH_DES_CBC_SHA
  • SSL3_RSA_EXPORT_WITH_RC2_CBC_40_MD5
  • SSL3_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA
  • SSL_RSA_FIPS_WITH_DES_CBC_SHA
  • SSL3_RSA_WITH_NULL_MD5
  • TLS_RSA_EXPORT1024_WITH_RC4_56_SHA
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA

Enabled:

  • SSL3_RSA_WITH_RC4_128_SHA
  • SSL3_RSA_WITH_3DES_EDE_CBC_SHA
  • SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA

TLS ciphers

Disabled:

  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA

Enabled:

  • TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_AES_128_CBC_SHA
  • TLS_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA

SSL version range for stream protocols

Minimum: tls1_0

Maximum: tls1_2

Valid values: ssl3, tls1_0, tls1_1, tls1_2

SSL version range for datagram protocols

Minimum: tls1_1

Maximum: tls1_2

Valid values: tls1_1, tls1_2

SSL range ciphers

This list defines the SSL ciphers for the above SSL version ranges. This parameter overrides the SSL options parameters above.

Disabled:

  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_RSA_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA256
  • TLS_RSA_WITH_AES_128_GCM_SHA256
  • TLS_RSA_WITH_3DES_EDE_CBC_SHA (enabled -> disabled per https://pagure.io/dogtagpki/issue/2821)

Enabled:

  • TLS_RSA_WITH_AES_128_CBC_SHA
  • TLS_RSA_WITH_AES_256_CBC_SHA

FIPS SSL Configuration

In FIPS mode, certain HSMs may require enabling certain SSL ciphers in order to work with PKI CLI and Firefox 34 or older (newer Firefox will not work).

For Thales HSM, enable the following SSL range ciphers:

  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_RSA_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA256

Disable everything else in SSL range ciphers.

The <Connector> element in server.xml will look like the following:

<Connector
    ...
    sslRangeCiphers="
TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
TLS_RSA_WITH_AES_128_CBC_SHA256,
TLS_RSA_WITH_AES_256_CBC_SHA256"
    .../>

Customizing SSL Configuration

During Installation

During installation the installer will use the default SSL configuration. Under certain circumstances (e.g. in FIPS mode) the default SSL configuration may not work. To customize the SSL configuration during installation use the Two-Step Installation:

  • Prepare a normal deployment configuration.
  • Add pki_skip_configuration=True to the configuration and run pkispawn.
  • Customize the SSL parameters as needed in /var/lib/pki/pki-tomcat/conf/server.xml
  • Replace pki_skip_configuration=True with pki_skip_installation=True and run pkispawn again.

After Installation

After installation the SSL settings can be customized directly in /var/lib/pki/pki-tomcat/conf/server.xml.

Troubleshooting

References