BID:20940

Microsoft Windows GDI Kernel Local Privilege Escalation Vulnerability

Info

Microsoft Windows GDI Kernel Local Privilege Escalation Vulnerability

Bugtraq ID:	20940
Class:	Design Error
CVE:	CVE-2006-5758
Remote:	No
Local:	Yes
Published:	Nov 06 2006 12:00AM
Updated:	Nov 02 2007 10:06PM
Credit:	Cesar Cerrudo is credited with the discovery of this vulnerability.
Vulnerable:	Nortel Networks Self-Service Speech Server 0 Nortel Networks Self-Service Peri NT Server 0 Nortel Networks Self-Service Peri IVR 0 Nortel Networks Self-Service Peri Application 0 Nortel Networks Self-Service MPS 500 0 Nortel Networks Self-Service MPS 1000 0 Nortel Networks Self-Service MPS 100 0 Nortel Networks Self-Service Media Processing Server 0 Nortel Networks Self-Service - Web Centric CCXML Nortel Networks Self-Service 0 Nortel Networks Centrex IP Client Manager 8.0 Nortel Networks Centrex IP Client Manager 7.0 Nortel Networks Centrex IP Client Manager 9.0 Microsoft Windows XP Tablet PC Edition SP2 Microsoft Windows XP Tablet PC Edition SP1 Microsoft Windows XP Tablet PC Edition Microsoft Windows XP Professional x64 Edition Microsoft Windows XP Professional SP2 Microsoft Windows XP Professional SP1 Microsoft Windows XP Professional Microsoft Windows XP Media Center Edition SP2 Microsoft Windows XP Media Center Edition SP1 Microsoft Windows XP Media Center Edition Microsoft Windows XP Home SP2 Microsoft Windows XP Home SP1 Microsoft Windows XP Home Microsoft Windows XP Gold 0 Microsoft Windows XP Embedded SP1 Microsoft Windows XP Embedded Microsoft Windows XP 64-bit Edition Version 2003 SP1 Microsoft Windows XP 64-bit Edition SP1 Microsoft Windows XP 64-bit Edition Microsoft Windows XP 0 Microsoft Windows 2000 Server Japanese Edition Microsoft Windows 2000 Server SP4 Microsoft Windows 2000 Server SP3 Microsoft Windows 2000 Server SP2 Microsoft Windows 2000 Server SP1 Microsoft Windows 2000 Server + Avaya DefinityOne Media Servers + Avaya IP600 Media Servers + Avaya S3400 Message Application Server 0 + Avaya S8100 Media Servers 0 Microsoft Windows 2000 Professional SP4 Microsoft Windows 2000 Professional SP3 Microsoft Windows 2000 Professional SP2 Microsoft Windows 2000 Professional SP1 Microsoft Windows 2000 Professional Microsoft Windows 2000 Datacenter Server SP4 Microsoft Windows 2000 Datacenter Server SP3 Microsoft Windows 2000 Datacenter Server SP2 Microsoft Windows 2000 Datacenter Server SP1 Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Advanced Server SP4 Microsoft Windows 2000 Advanced Server SP3 Microsoft Windows 2000 Advanced Server SP2 Microsoft Windows 2000 Advanced Server SP1 Microsoft Windows 2000 Advanced Server HP Storage Management Appliance 2.1 + HP Storage Management Appliance III + HP Storage Management Appliance II + HP Storage Management Appliance I Avaya Messaging Application Server MM 3.1 Avaya Messaging Application Server MM 3.0 Avaya Messaging Application Server MM 2.0 Avaya Messaging Application Server 0 Avaya Customer Interaction Express (CIE) User Interface 1.0 Avaya Customer Interaction Express (CIE) Server 1.0

Not Vulnerable:

Discussion

Microsoft Windows GDI Kernel Local Privilege Escalation Vulnerability

Microsoft Windows is prone to a local privilege-escalation vulnerability because data structures mapped by the GDI Kernel can be re-mapped as read-write by other processes.

An attacker could exploit this issue to execute arbitrary machine code with SYSTEM-level privileges. A successful exploit could result in the complete compromise of the affected computer. Failed attempts could cause denial-of-service conditions.

Exploit / POC

Microsoft Windows GDI Kernel Local Privilege Escalation Vulnerability

UPDATE: Core Security Technologies has developed a working commercial exploit for its CORE IMPACT product. This exploit is not otherwise publicly available or known to be circulating in the wild.

An exploit is available to members of the Immunity Partner's program:

https://www.immunityinc.com/downloads/immpartners/GDIWrite4.tgz

This module reportedly reliably exploits this vulnerability on Windows 2000 up to SP4 and Windows XP up to SP2.

The following proof-of-concept examples and exploits are available:

/data/vulnerabilities/exploits/GDIKernelPoC.cpp
/data/vulnerabilities/exploits/20940-Ivan.c
/data/vulnerabilities/exploits/20940-Lionel.c
/data/vulnerabilities/exploits/gdi_remote_elevation_privilege_exploit_ms07_017_principal.zip

Solution / Fix

Microsoft Windows GDI Kernel Local Privilege Escalation Vulnerability

Solution:
Microsoft has released an advisory detailing updates to address this issue in supported versions of affected applications. Please see the referenced advisory for details on obtaining and applying the appropriate updates.

Microsoft Windows XP Media Center Edition SP2