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Webroot Desktop Firewall Two Vulnerabilities
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SUMMARY
<http://www.webroot.com/consumer/products/desktopfirewall/> Webroot
Desktop Firewall "secures your computer from Internet threats and reduces
the risks of being a victim of online crimes".
Secunia Research has discovered two vulnerabilities in Webroot Desktop
Firewall, which can be exploited by malicious, local users to gain
escalated privileges or bypass certain security restrictions.
DETAILS
Vulnerable Systems:
* Webroot Desktop Firewall version 1.3.0 build 43
Immune Systems:
* Webroot Desktop Firewall version 1.3.0 build 52
1) A boundary error in PWIWrapper.dll when deleting a program from the
list of "allowed" programs can cause a buffer overflow in
FirewallNTService.exe. This can be exploited by sending a specially
crafted application chain to the firewall driver via a DeviceIoControl()
command, and then removing an "allowed" program from the firewall GUI.
Successful exploitation allows non-privileged users to execute arbitrary
code with SYSTEM privileges, but requires the the ability
to add and remove programs from the firewall's permitted application list.
2) It is possible for non-privileged users to disable the firewall even
when password protection has been enabled, by sending specific
DeviceIoControl() commands to the firewall driver.
ADDITIONAL INFORMATION
The information has been provided by <mailto:vuln@secunia.com> Secunia
Research.
The original article can be found at:
<http://support.webroot.com/ics/support/KBAnswer.asp?questionID=2332>
http://support.webroot.com/ics/support/KBAnswer.asp?questionID=2332
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