[guru] Fwd: [mnunez@cybsec.com: CYBSEC - Security Pre-Advisory: Microsoft Windows DHCP Client Service Remote Buffer Overflow]
DATE: Mon, 17 Jul 2006 15:58:10 +0200
TÃvolrÃl kihasznÃlhatà Buffer Overflow hibÃt talÃltak a Microsoft Windows
DHCP Client-ben, melynek kihasznÃlÃsÃval a tÃmadà kÃdot futtathat SYSTEM
hozzÃfÃrÃssel a DHCP-t engedÃlyezett Microsoft Windows rendszeren.
A hotfix elÃrhetÅ.
----- Forwarded message from Mariano NuÃez Di Croce <mnunez@cybsec.com> -----
Date: Tue, 11 Jul 2006 15:02:28 -0300
From: Mariano NuÃez Di Croce <mnunez@cybsec.com>
To: bugtraq@securityfocus.com
Subject: CYBSEC - Security Pre-Advisory: Microsoft Windows DHCP Client Service
Remote Buffer Overflow
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20060205 Debian/1.7.12-1.1
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(The following advisory is also available in PDF format for download at:
http://www.cybsec.com/vuln/CYBSEC-Security_Pre-Advisory_Microsoft_Windows_DHCP_Client_Service_Remote_Buffer_Overflow.pdf )
CYBSEC S.A.
www.cybsec.com
Pre-Advisory Name: Microsoft Windows DHCP Client Service Remote Buffer Overflow
==================
Vulnerability Class: Buffer Overflow
====================
Release Date: 07/11/2006
=============
Affected Platforms:
===================
* Microsoft Windows 2000 (<= SP4)
* Microsoft Windows XP (<= SP2)
* Microsoft Windows 2003 (<= SP1)
Local / Remote: Remote
===============
Severity: High
=========
Author: Mariano NuÃez Di Croce
=======
Vendor Status:
==============
* Confirmed, update released.
Reference to Vulnerability Disclosure Policy:
=============================================
http://www.cybsec.com/vulnerability_policy.pdf
Vulnerability Description:
==========================
A remote buffer overflow vulnerability has been identified in Microsoft Windows DHCP-Client service.
Technical Details:
==================
Technical details will be released 30 days after publication of this pre-advisory.
This was agreed upon with Microsoft to allow their customers to upgrade affected software prior to technical knowledge been publicly available.
Impact:
=======
Exploiting this vulnerability, an attacker would be able to execute code remotely with SYSTEM privileges over DHCP-enabled Microsoft Windows systems.
Solutions:
==========
Microsoft has released a hotfix to address this vulnerability.
Customers should apply the hotfix immediately or upgrade their systems through Microsoft Windows Update system.
Vendor Response:
================
* 12/26/2005: Initial Vendor Contact.
* 01/19/2006: Vendor Confirmed Vulnerability.
* 07/11/2006: Vendor Releases Update.
* 07/11/2006: Pre-Advisory Public Disclosure.
Contact Information:
====================
For more information regarding the vulnerability feel free to contact
the author at mnunez {at} cybsec.com.
For more information regarding CYBSEC: www.cybsec.com
(c) 2006 - CYBSEC S.A. Security Systems
- --
- ------------------------------
Mariano NuÃez Di Croce
CYBSEC S.A. Security Systems
Email: mnunez@cybsec.com
Tel/Fax: (54-11) 4382-1600
Web: http://www.cybsec.com
PGP: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x26B20899
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