openssh/openssh-7.7p1-X11_trusted_forwarding.patch

# HG changeset patch
# Parent  d25c96855fd67e997e25ec1198d953af33eb289c
# enable trusted X11 forwarding by default in both sshd and sshsystem-wide
# configuration
# bnc#50836 (was suse #35836)
Enable Trusted X11 forwarding by default, since the security benefits of
having it disabled are negligible these days with XI2 being widely used.

Index: openssh-8.8p1/ssh_config
===================================================================
--- openssh-8.8p1.orig/ssh_config
+++ openssh-8.8p1/ssh_config
@@ -17,9 +17,20 @@
 # list of available options, their meanings and defaults, please see the
 # ssh_config(5) man page.
 
-# Host *
+Host *
 #   ForwardAgent no
 #   ForwardX11 no
+
+# If you do not trust your remote host (or its administrator), you
+# should not forward X11 connections to your local X11-display for
+# security reasons: Someone stealing the authentification data on the
+# remote side (the "spoofed" X-server by the remote sshd) can read your
+# keystrokes as you type, just like any other X11 client could do.
+# Set this to "no" here for global effect or in your own ~/.ssh/config
+# file if you want to have the remote X11 authentification data to 
+# expire after twenty minutes after remote login.
+    ForwardX11Trusted yes
+
 #   PasswordAuthentication yes
 #   HostbasedAuthentication no
 #   GSSAPIAuthentication no
Index: openssh-8.8p1/sshd_config
===================================================================
--- openssh-8.8p1.orig/sshd_config
+++ openssh-8.8p1/sshd_config
@@ -84,7 +84,7 @@ AuthorizedKeysFile	.ssh/authorized_keys
 #AllowAgentForwarding yes
 #AllowTcpForwarding yes
 #GatewayPorts no
-#X11Forwarding no
+X11Forwarding yes
 #X11DisplayOffset 10
 #X11UseLocalhost yes
 #PermitTTY yes
- Update to openssh 9.9p1: * No changes for askpass, see main package changelog for details. - Update to openssh 9.9p1: = Future deprecation notice * OpenSSH plans to remove support for the DSA signature algorithm in early 2025. This release disables DSA by default at compile time. DSA, as specified in the SSHv2 protocol, is inherently weak - being limited to a 160 bit private key and use of the SHA1 digest. Its estimated security level is only 80 bits symmetric equivalent. OpenSSH has disabled DSA keys by default since 2015 but has retained run-time optional support for them. DSA was the only mandatory-to-implement algorithm in the SSHv2 RFCs, mostly because alternative algorithms were encumbered by patents when the SSHv2 protocol was specified. This has not been the case for decades at this point and better algorithms are well supported by all actively-maintained SSH implementations. We do not consider the costs of maintaining DSA in OpenSSH to be justified and hope that removing it from OpenSSH can accelerate its wider deprecation in supporting cryptography libraries. = Potentially-incompatible changes * ssh(1): remove support for pre-authentication compression. OpenSSH has only supported post-authentication compression in the server for some years. Compression before authentication significantly increases the attack surface of SSH servers and risks creating oracles that reveal information about information sent during authentication. OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=275 2024-09-25 10:42:29 +02:00			`# HG changeset patch`
			`# Parent d25c96855fd67e997e25ec1198d953af33eb289c`
			`# enable trusted X11 forwarding by default in both sshd and sshsystem-wide`
			`# configuration`
			`# bnc#50836 (was suse #35836)`
			`Enable Trusted X11 forwarding by default, since the security benefits of`
			`having it disabled are negligible these days with XI2 being widely used.`

			`Index: openssh-8.8p1/ssh_config`
			`===================================================================`
			`--- openssh-8.8p1.orig/ssh_config`
			`+++ openssh-8.8p1/ssh_config`
			`@@ -17,9 +17,20 @@`
			`# list of available options, their meanings and defaults, please see the`
			`# ssh_config(5) man page.`

			`-# Host *`
			`+Host *`
			`# ForwardAgent no`
			`# ForwardX11 no`
			`+`
			`+# If you do not trust your remote host (or its administrator), you`
			`+# should not forward X11 connections to your local X11-display for`
			`+# security reasons: Someone stealing the authentification data on the`
			`+# remote side (the "spoofed" X-server by the remote sshd) can read your`
			`+# keystrokes as you type, just like any other X11 client could do.`
			`+# Set this to "no" here for global effect or in your own ~/.ssh/config`
			`+# file if you want to have the remote X11 authentification data to`
			`+# expire after twenty minutes after remote login.`
			`+ ForwardX11Trusted yes`
			`+`
			`# PasswordAuthentication yes`
			`# HostbasedAuthentication no`
			`# GSSAPIAuthentication no`
			`Index: openssh-8.8p1/sshd_config`
			`===================================================================`
			`--- openssh-8.8p1.orig/sshd_config`
			`+++ openssh-8.8p1/sshd_config`
			`@@ -84,7 +84,7 @@ AuthorizedKeysFile .ssh/authorized_keys`
			`#AllowAgentForwarding yes`
			`#AllowTcpForwarding yes`
			`#GatewayPorts no`
			`-#X11Forwarding no`
			`+X11Forwarding yes`
			`#X11DisplayOffset 10`
			`#X11UseLocalhost yes`
			`#PermitTTY yes`