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From 922f3a7599d03234b6bb2ffb22a33624e7cf1953 Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@debian.org>
Date: Mon, 16 Jan 2017 13:53:04 +0000
Subject: Remove ssh_host_dsa_key from HostKey default
The client no longer accepts DSA host keys, and servers using the
default HostKey setting should have better host keys available.
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=2662
Bug-Debian: https://bugs.debian.org/850614
Last-Update: 2017-01-16
Patch-Name: no-dsa-host-key-by-default.patch
---
servconf.c | 2 --
sshd.8 | 7 +++----
sshd_config | 1 -
sshd_config.5 | 7 +++----
4 files changed, 6 insertions(+), 11 deletions(-)
diff --git a/servconf.c b/servconf.c
index b0146405..5e996cf8 100644
--- a/servconf.c
+++ b/servconf.c
@@ -205,8 +205,6 @@ fill_default_server_options(ServerOptions *options)
/* fill default hostkeys for protocols */
options->host_key_files[options->num_host_key_files++] =
_PATH_HOST_RSA_KEY_FILE;
- options->host_key_files[options->num_host_key_files++] =
- _PATH_HOST_DSA_KEY_FILE;
#ifdef OPENSSL_HAS_ECC
options->host_key_files[options->num_host_key_files++] =
_PATH_HOST_ECDSA_KEY_FILE;
diff --git a/sshd.8 b/sshd.8
index 02c5e1df..8c230657 100644
--- a/sshd.8
+++ b/sshd.8
@@ -164,11 +164,10 @@ This option must be given if
is not run as root (as the normal
host key files are normally not readable by anyone but root).
The default is
-.Pa /etc/ssh/ssh_host_dsa_key ,
-.Pa /etc/ssh/ssh_host_ecdsa_key ,
-.Pa /etc/ssh/ssh_host_ed25519_key
+.Pa /etc/ssh/ssh_host_rsa_key ,
+.Pa /etc/ssh/ssh_host_ecdsa_key
and
-.Pa /etc/ssh/ssh_host_rsa_key .
+.Pa /etc/ssh/ssh_host_ed25519_key .
It is possible to have multiple host key files for
the different host key algorithms.
.It Fl i
diff --git a/sshd_config b/sshd_config
index f68edf36..92822959 100644
--- a/sshd_config
+++ b/sshd_config
@@ -16,7 +16,6 @@
#ListenAddress ::
#HostKey /etc/ssh/ssh_host_rsa_key
-#HostKey /etc/ssh/ssh_host_dsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key
#HostKey /etc/ssh/ssh_host_ed25519_key
diff --git a/sshd_config.5 b/sshd_config.5
index 16be4f62..ef520680 100644
--- a/sshd_config.5
+++ b/sshd_config.5
@@ -749,11 +749,10 @@ is not to load any certificates.
Specifies a file containing a private host key
used by SSH.
The defaults are
-.Pa /etc/ssh/ssh_host_dsa_key ,
-.Pa /etc/ssh/ssh_host_ecdsa_key ,
-.Pa /etc/ssh/ssh_host_ed25519_key
+.Pa /etc/ssh/ssh_host_rsa_key ,
+.Pa /etc/ssh/ssh_host_ecdsa_key
and
-.Pa /etc/ssh/ssh_host_rsa_key .
+.Pa /etc/ssh/ssh_host_ed25519_key .
.Pp
Note that
.Xr sshd 8
|
