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-rw-r--r--bus/system.conf.in4
1 files changed, 4 insertions, 0 deletions
diff --git a/bus/system.conf.in b/bus/system.conf.in
index bb468bb9..6a71926e 100644
--- a/bus/system.conf.in
+++ b/bus/system.conf.in
@@ -53,6 +53,10 @@
<!-- valid replies are always allowed -->
<allow send_requested_reply="true"/>
<allow receive_requested_reply="true"/>
+ <!-- disallow changing the activation environment of system services -->
+ <deny send_destination="org.freedesktop.DBus"
+ send_interface="org.freedesktop.DBus"
+ send_member="UpdateActivationEnvironment"/>
</policy>
<!-- Config files are placed here that among other things, punch