Pedestal Software Integrity Protection Driver Symbolic Link Bypass Vulnerability

Bugtraq ID:	6511
Class:	Origin Validation Error
CVE:
Remote:	No
Local:	Yes
Published:	Jan 03 2003 12:00AM
Updated:	Jan 03 2003 12:00AM
Credit:	Originally reported by crazylord <[email protected]>.
Vulnerable:	Pedestal Software Integrity Protection Driver 1.3 - Microsoft Windows 2000 Advanced Server SP3 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - 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 Professional SP3 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP3 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP3 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 Pedestal Software Integrity Protection Driver 1.2 - Microsoft Windows 2000 Advanced Server SP3 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - 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 Professional SP3 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP3 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP3 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0
Not Vulnerable:	Pedestal Software Integrity Protection Driver 1.4 - Microsoft Windows 2000 Advanced Server SP3 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - 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 Professional SP3 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP3 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Terminal Services SP3 - Microsoft Windows 2000 Terminal Services SP2 - Microsoft Windows 2000 Terminal Services SP1 - Microsoft Windows 2000 Terminal Services - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Terminal Server 4.0 SP6 - Microsoft Windows NT Terminal Server 4.0 SP5 - Microsoft Windows NT Terminal Server 4.0 SP4 - Microsoft Windows NT Terminal Server 4.0 SP3 - Microsoft Windows NT Terminal Server 4.0 SP2 - Microsoft Windows NT Terminal Server 4.0 SP1 - Microsoft Windows NT Terminal Server 4.0 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0

Pedestal Software Integrity Protection Driver Symbolic Link Bypass Vulnerability

Pedestal Software's Integrity Protection Driver protects the Windows kernel from being altered by malicious device drivers. This protection can be bypassed through the use of symbolic links.

By creating a symbolic link to the Windows drivers directory, an attacker can bypass the IPD and overwrite a driver file with a malicious file.

Pedestal Software Integrity Protection Driver Symbolic Link Bypass Vulnerability

There is no exploit code necessary.

Pedestal Software Integrity Protection Driver Symbolic Link Bypass Vulnerability

Solution:
This issue was originally fixed in IPD 1.3, however, Jan Rutkowski <[email protected]> pointed out that by mapping the symbolic link to a drive letter using the subst command would bypass this fix.

Both exploitation methods have reportedly been addressed in IPD 1.4:


Pedestal Software Integrity Protection Driver 1.2

• Pedestal Software Integrity Protection Driver 1.4
  http://www.pedestalsoftware.com/download/ipd.zip

Pedestal Software Integrity Protection Driver 1.3

• Pedestal Software Integrity Protection Driver 1.4
  http://www.pedestalsoftware.com/download/ipd.zip

Pedestal Software Integrity Protection Driver Symbolic Link Bypass Vulnerability

References:

• Integrity Protection Driver (Pedestal Software)
  
• Playing with Windows /dev/(k)mem (crazylord )
  
• Another way to bypass Integrity Protection Driver ('subst' vuln) (Jan Rutkowski )
  
• Pedestal Software Security Notice ("Keith Woodard" )