WinGate < 6.2.0 Compressed Name Pointer DoS

Medium Nessus Network Monitor Plugin ID 3818


The remote proxy is affected by a denial of service vulnerability.


The remote host appears to be running WinGate, a Windows application for managing and securing Internet access. The version of WinGate installed on the remote host contains a flaw involving the processing of DNS requests with compressed name pointers. By sending a specially-crafted DNS request to a UDP port on which WinGate is listening, an unauthenticated remote attacker can cause the affected application to consume 100% of the available CPU, thereby denying service to legitimate users.


Upgrade to version 6.2.0 or higher.

Plugin Details

Severity: Medium

ID: 3818

Family: Web Servers

Published: 2006/11/27

Modified: 2016/01/21

Dependencies: 1442

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:F/RL:OF/RC:C


Base Score: 5.3

Temporal Score: 4.9


Temporal Vector: CVSS3#E:F/RL:O/RC:C

Reference Information

CVE: CVE-2006-4518

BID: 21295