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129 lines
3 KiB
Text
129 lines
3 KiB
Text
---
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title: About the ssl Resource
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platform: os
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---
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# ssl
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Use the `ssl` InSpec audit resource to test SSL settings for the named port.
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<br>
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## Availability
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### Installation
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This resource is distributed along with InSpec itself. You can use it automatically.
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### Version
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This resource first became available in v1.0.0 of InSpec.
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## Syntax
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An `ssl` resource block declares an SSL port, and then other properties of the test like cipher and/or protocol:
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describe ssl(port: #) do
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it { should be_enabled }
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end
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or:
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describe ssl(port: #).filter('value') do
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it { should be_enabled }
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end
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where
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* `ssl(port: #)` is the port number, such as `ssl(port: 443)`
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* `filter` may take any of the following arguments: `ciphers`, `protocols`, and `handshake`
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<br>
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## Examples
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The following examples show how to use this InSpec audit resource.
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### Run the ssl-benchmark example profile
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The following shows how to use the `ssl` InSpec audit resource to find all TCP ports on the system, including IPv4 and IPv6. (This is a partial example based on the `ssl_text.rb` file in the `ssl-benchmark` profile on GitHub.)
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...
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control 'tls1.2' do
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title 'Run TLS 1.2 whenever SSL is active on a port'
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impact 0.5
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sslports.each do |socket|
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proc_desc = "on node == #{command('hostname').stdout.strip} running #{socket.process.inspect} (#{socket.pid})"
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describe ssl(port: socket.port).protocols('tls1.2') do
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it(proc_desc) { should be_enabled }
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it { should be_enabled }
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end
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end
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end
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...
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control 'rc4' do
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title 'Disable RC4 ciphers from all exposed SSL/TLS ports and versions.'
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impact 0.5
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sslports.each do |socket|
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proc_desc = "on node == #{command('hostname').stdout.strip} running #{socket.process.inspect} (#{socket.pid})"
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describe ssl(port: socket.port).ciphers(/rc4/i) do
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it(proc_desc) { should_not be_enabled }
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it { should_not be_enabled }
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end
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end
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end
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There are two ways to run the `ssl-benchmark` example profile to test SSL via the `ssl` resource.
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Clone the profile:
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$ git clone https://github.com/dev-sec/ssl-benchmark
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and then run:
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$ inspec exec ssl-benchmark
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Or execute the profile directly via URL:
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$ inspec exec https://github.com/dev-sec/ssl-benchmark
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<br>
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## Matchers
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For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
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### be_enabled
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The `be_enabled` matcher tests if SSL is enabled:
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it { should be_enabled }
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### ciphers
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The `ciphers` matcher tests the named cipher:
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its('ciphers') { should_not eq '/rc4/i' }
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or:
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describe ssl(port: 443).ciphers(/rc4/i) do
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it { should_not be_enabled }
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end
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### protocols
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The `protocols` matcher tests what protocol versions (SSLv3, TLSv1.1, etc) are enabled:
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its('protocols') { should eq 'ssl2' }
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or:
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describe ssl(port: 443).protocols('ssl2') do
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it { should_not be_enabled }
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end
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