From aef4475939a773e1a205a71d641ea2bb6793ab92 Mon Sep 17 00:00:00 2001 From: Simon McVittie Date: Thu, 12 Apr 2018 14:09:19 +0100 Subject: [PATCH] dbus-daemon(1): Recommend requiring EXTERNAL on non-Windows OSs This is the default, and blocks TCP-based attacks by making the attacker fail to authenticate (while also preventing inadvisable TCP-based configurations from working). Bug: https://bugs.freedesktop.org/show_bug.cgi?id=106004 Signed-off-by: Simon McVittie Reviewed-by: Ralf Habacker Reviewed-by: Philip Withnall --- doc/dbus-daemon.1.xml.in | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/dbus-daemon.1.xml.in b/doc/dbus-daemon.1.xml.in index 31872053..fabe8a1b 100644 --- a/doc/dbus-daemon.1.xml.in +++ b/doc/dbus-daemon.1.xml.in @@ -491,6 +491,10 @@ exist, then all known mechanisms are allowed. If there are multiple <auth> elements, all the listed mechanisms are allowed. The order in which mechanisms are listed is not meaningful. +On non-Windows operating systems, allowing only the + EXTERNAL authentication + mechanism is strongly recommended. This is the default for the + well-known system bus and for the well-known session bus. Example: <auth>EXTERNAL</auth> -- GitLab