1 files changed, 57 insertions, 0 deletions

diff --git a/debian/patches/max-startups-default.patch b/debian/patches/max-startups-default.patch
new file mode 100644
index 000000000..87e690bd1
--- /dev/null
+++ b/debian/patches/max-startups-default.patch
@@ -0,0 +1,57 @@
+Description: Change default of MaxStartups to 10:30:100
+ This causes sshd to start doing random early drop at 10 connections up to
+ 100 connections.  This will make it harder to DoS as CPUs have come a long
+ way since the original value was set back in 2000.
+Author: Darren Tucker
+Origin: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/servconf.c?r1=1.234#rev1.234
+Origin: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshd_config.5?r1=1.156#rev1.156
+Origin: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshd_config?r1=1.89#rev1.89
+Bug-Debian: http://bugs.debian.org/700102
+Forwarded: not-needed
+Last-Update: 2013-02-08
+
+Index: b/servconf.c
+===================================================================
+--- a/servconf.c
++++ b/servconf.c
+@@ -264,11 +264,11 @@
+        if (options->gateway_ports == -1)
+                options->gateway_ports = 0;
+        if (options->max_startups == -1)
+-               options->max_startups = 10;
++               options->max_startups = 100;
+        if (options->max_startups_rate == -1)
+-               options->max_startups_rate = 100;               /* 100% */
++               options->max_startups_rate = 30;                /* 30% */
+        if (options->max_startups_begin == -1)
+-               options->max_startups_begin = options->max_startups;
++               options->max_startups_begin = 10;
+        if (options->max_authtries == -1)
+                options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
+        if (options->max_sessions == -1)
+Index: b/sshd_config
+===================================================================
+--- a/sshd_config
++++ b/sshd_config
+@@ -108,7 +108,7 @@
+ #ClientAliveCountMax 3
+ #UseDNS yes
+ #PidFile /var/run/sshd.pid
+-#MaxStartups 10
++#MaxStartups 10:30:100
+ #PermitTunnel no
+ #ChrootDirectory none
+ #VersionAddendum none
+Index: b/sshd_config.5
+===================================================================
+--- a/sshd_config.5
++++ b/sshd_config.5
+@@ -781,7 +781,7 @@
+ Additional connections will be dropped until authentication succeeds or the
+ .Cm LoginGraceTime
+ expires for a connection.
+-The default is 10.
++The default is 10:30:100.
+ .Pp
+ Alternatively, random early drop can be enabled by specifying
+ the three colon separated values