Published:2008/06/25  Last Updated:2008/07/01

nProtect : Netizen denial of service (DoS) vulnerability


nProtect : Netizen contains a denial of service (DoS) vulnerability.

Products Affected

  • npstarter.ocx of nProtect : Netizen Ver5 prior to version "2008, 6, 16, 1"
For more information, refer to the vendor's website.


nProtect : Netizen from NetMove Corporation is security software that works only while communicating with specific web pages. nProtect : Netizen contains a denial of service (DoS) vulnerability.


An remote attacker could disable nProtect : Netizen by convincing a user to open a specially crafted web page.


Update the Software
Apply the latest update provided by the vendor.

Vendor Status

Vendor Status Last Update Vendor Notes
NetMove Corporation Vulnerable 2008/06/25


JPCERT/CC Addendum

The vendor has released the information regarding this issue on June 20 2008.

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.06.25

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication None - anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required Simple - the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Medium
Exploit Complexity Low-Medium - some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Medium-High

Description of each analysis measures


Yuji Ukai of Fourteenforty Research Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendor under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
JVN iPedia JVNDB-2008-000032

Update History