Bug 146766

Summary: CAN-2005-0201 dbus information leak
Product: Red Hat Enterprise Linux 4 Reporter: Josh Bressers <bressers>
Component: dbusAssignee: John (J5) Palmieri <johnp>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: medium    
Version: 4.0CC: jkeck
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: impact=low,public=20050131,source=redhat
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-06-08 15:00:24 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
Patch from upstream makes the bus only allow messages if sent from the session's uid none

Description Josh Bressers 2005-02-01 14:49:17 UTC 
*** This bug has been split off bug 146765 ***

------- Original comment by Josh Bressers (Security Response Team) on 2005.02.01
09:47 -------

This text was stolen from the freedesktop bugzilla
https://bugs.freedesktop.org/show_bug.cgi?id=2436


If I login as root and create a session bus, then login as another user, I am
able to use dbus-send to connect to root's session bus.

To reproduce:
Login as root, open a terminal, echo $DBUS_SESSION_BUS_ADDRESS, write down the
address.
Run dbus-monitor --session

Login as another user on a console, run:
env DBUS_SESSION_BUS_ADDRESS=(address written down above) dbus-send
--dest=org.freedesktop.DBus --type=method_call --print-reply
/org/freedesktop/DBus org.freedesktop.DBus.ListServices

The dbus-send gives a message about not being able to print the return value,
and the dbus-monitor on root's session bus shows the ListServices request coming
through.

A patch exists in the upstream bugzilla.
Comment 1 John (J5) Palmieri 2005-02-01 18:47:55 UTC 
Created attachment 110510 [details]
Patch from upstream makes the bus only allow messages if sent from the session's uid
Comment 2 Tim Powers 2005-06-08 15:00:24 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2005-102.html