A design flaw in SoftICE Driver Suite version 2.7 allows for authentication bypass.
bbb2b29b8f7a2e08256dab7b3f070789b67e4bb444e1d4d920580511426b4b2e
DriverStudio Remote Control Authentication Bypass Vulnerability
by cocoruder
page:http://ruder.cdut.net
email:cocoruder@163.com && frankruder@hotmail.com
Last Update:2005.09.10
class:design error
date:10/9/2005
Remote:yes
local:yes
Product Affected:
>=NuMega.DriverStudio.v2.7
I test successfully on:
NuMega.DriverStudio.v2.7(windows 2000 sp4|windows xp sp1)
NuMega.DriverStudio.v3.0beta2(windows 2000 sp4|windows xp sp1)
Vendor:
www.compuware.com
Overview:
SoftICE Driver Suite is an most popular kenerl-debug software suite,the default-setup "DriverStudio Remote Contro" service(process name:DSRsvc.exe) allow a user to configure Softice on the remote computer,authenticate with currently-login username and password. but the authentication can be bypassed,that any remote attacker can modifit local Softice-setting file(winice.dat).
Details:
the remote-control communications use DEC RPC protocol,authenticate with NTLMv1,if we authenticate with NULL Session Login(NULL user name,NULL NTLM hash),we can also authenticate successfully.that we can modifit "winice.dat".disable the windows NULL Session Login will not be effective.
another vulnerability is erveryone send follow buffer to the UDP port 9110 can make the system reboot.
02 00 00 00 41 41 41 00 ;00000002 --->reboot command
colligate the two vulnerability can get system privilege.
exploit:
1.modifit winice.dat(use modifit_config.cpp to send winice_attack.dat to target)
2.modifit softice boot-type to:Automatic
3.send the reboot buffer to target UDP 9110,and waiting target computer reboot(use send_reboot.cpp)
4.send shellcode buffer to UDP 9110(use send_shellcode.cpp)
all the code will not be published until the vendor release the patch:)