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Category:   Application (Generic)  >   D-BUS Vendors:   Freedesktop.org
D-Bus Policy Flaw Lets Remote Users Execute Restricted Method Calls
SecurityTracker Alert ID:  1019512
SecurityTracker URL:  http://securitytracker.com/id/1019512
CVE Reference:   CVE-2008-0595   (Links to External Site)
Date:  Feb 28 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.1.20
Description:   A vulnerability was reported in D-Bus. A remote user can execute certain method calls.

The <allow send_interface= some.interface.WithMethods /> policy statement allows a remote user to send a message without an interface to bypass policy deny rules. A remote user can connect to the dbus-daemon to execute restricted method calls.

Havoc Pennington reported this vulnerability.

Impact:   A remote user can execute restricted method calls on the target system.
Solution:   The vendor has issued a fixed version (1.1.20).
Vendor URL:  www.freedesktop.org/wiki/Software/dbus (Links to External Site)
Cause:   Access control error
Underlying OS:   Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 28 2008 (Red Hat Issues Fix) D-Bus Policy Flaw Lets Remote Users Execute Restricted Method Calls   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux 5.



 Source Message Contents

Date:  Wed, 27 Feb 2008 21:00:51 -0500
Subject:  D-Bus


http://www.j5live.com/

Fixed CVE-2008-0595 - security policy of the type <allow send_interface= 
“some.interface.WithMethods“/> work as an implicit allow for messages sent without an 
interface bypassing the default deny rules and potentially allowing restricted methods 
exported on the bus to be executed by unauthorized users.
 
 


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