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authorMicah Anderson <micah@riseup.net>2015-05-01 13:57:37 -0400
committerMicah Anderson <micah@riseup.net>2015-05-04 15:42:26 -0400
commit1402e67b2143dca464905bb6d95410a4ee862255 (patch)
tree0fec895602a87b53d1e652456b2e723099840849
parent430c48200eeacf11fd3980f162ffa1994c2d0dd0 (diff)
downloadpuppet-sshd-1402e67b2143dca464905bb6d95410a4ee862255.tar.gz
puppet-sshd-1402e67b2143dca464905bb6d95410a4ee862255.tar.bz2
Implement enhanced symmetric cipher selection, based on
https://stribika.github.io/2015/01/04/secure-secure-shell.html and version of openssh installed
-rw-r--r--templates/sshd_config/CentOS_6.erb4
-rw-r--r--templates/sshd_config/CentOS_7.erb4
-rw-r--r--templates/sshd_config/Debian_jessie.erb2
-rw-r--r--templates/sshd_config/Debian_sid.erb2
-rw-r--r--templates/sshd_config/Debian_wheezy.erb4
-rw-r--r--templates/sshd_config/FreeBSD.erb4
-rw-r--r--templates/sshd_config/Gentoo.erb4
-rw-r--r--templates/sshd_config/OpenBSD.erb4
-rw-r--r--templates/sshd_config/Ubuntu.erb4
-rw-r--r--templates/sshd_config/Ubuntu_lucid.erb4
10 files changed, 26 insertions, 10 deletions
diff --git a/templates/sshd_config/CentOS_6.erb b/templates/sshd_config/CentOS_6.erb
index f27e567..325c73a 100644
--- a/templates/sshd_config/CentOS_6.erb
+++ b/templates/sshd_config/CentOS_6.erb
@@ -153,8 +153,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/CentOS_7.erb b/templates/sshd_config/CentOS_7.erb
index c6ecd06..b120356 100644
--- a/templates/sshd_config/CentOS_7.erb
+++ b/templates/sshd_config/CentOS_7.erb
@@ -167,8 +167,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/Debian_jessie.erb b/templates/sshd_config/Debian_jessie.erb
index 19d4327..7b74e76 100644
--- a/templates/sshd_config/Debian_jessie.erb
+++ b/templates/sshd_config/Debian_jessie.erb
@@ -113,7 +113,7 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
KexAlgorithms curve25519-sha256@libssh.org
-Ciphers aes256-ctr
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/Debian_sid.erb b/templates/sshd_config/Debian_sid.erb
index 19d4327..7b74e76 100644
--- a/templates/sshd_config/Debian_sid.erb
+++ b/templates/sshd_config/Debian_sid.erb
@@ -113,7 +113,7 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
KexAlgorithms curve25519-sha256@libssh.org
-Ciphers aes256-ctr
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/Debian_wheezy.erb b/templates/sshd_config/Debian_wheezy.erb
index e8465ea..214fbd9 100644
--- a/templates/sshd_config/Debian_wheezy.erb
+++ b/templates/sshd_config/Debian_wheezy.erb
@@ -117,8 +117,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/FreeBSD.erb b/templates/sshd_config/FreeBSD.erb
index 8655c53..3e13328 100644
--- a/templates/sshd_config/FreeBSD.erb
+++ b/templates/sshd_config/FreeBSD.erb
@@ -155,8 +155,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/Gentoo.erb b/templates/sshd_config/Gentoo.erb
index 1508d70..3d37d62 100644
--- a/templates/sshd_config/Gentoo.erb
+++ b/templates/sshd_config/Gentoo.erb
@@ -150,8 +150,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/OpenBSD.erb b/templates/sshd_config/OpenBSD.erb
index 591d980..aa6868e 100644
--- a/templates/sshd_config/OpenBSD.erb
+++ b/templates/sshd_config/OpenBSD.erb
@@ -131,8 +131,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/Ubuntu.erb b/templates/sshd_config/Ubuntu.erb
index 28ee5f6..2f8cb3e 100644
--- a/templates/sshd_config/Ubuntu.erb
+++ b/templates/sshd_config/Ubuntu.erb
@@ -118,8 +118,10 @@ AllowGroups <%= s %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>
diff --git a/templates/sshd_config/Ubuntu_lucid.erb b/templates/sshd_config/Ubuntu_lucid.erb
index 36f787b..109b49f 100644
--- a/templates/sshd_config/Ubuntu_lucid.erb
+++ b/templates/sshd_config/Ubuntu_lucid.erb
@@ -121,8 +121,10 @@ PrintMotd <%= scope.lookupvar('sshd::print_motd') %>
<% if scope.lookupvar('sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
-<% end -%>
+Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
+<% else -%>
Ciphers aes256-ctr
+<% end -%>
MACs hmac-sha1
<% end -%>