Alert: Microsoft Security Bulletin MS04-043 - Vulnerability in HyperTerminal Could Allow Code Execution (873339)

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Date:         Tue, 14 Dec 2004 13:26:35 -0500
To: NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM

Microsoft Security Bulletin MS04-043:
Vulnerability in HyperTerminal Could Allow Code Execution (873339)

Bulletin URL:
<http://www.microsoft.com/technet/security/bulletin/MS04-043.mspx>

Version Number: 1.0
Issued Date: Tuesday, December 14, 2004
Impact of Vulnerability: Remote Code Execution
Maximum Severity Rating: Important
Patch(es) Replaced: None
Caveats: None

Tested Software:
Affected Software:
------------------
* Microsoft Windows NT Server 4.0 Service Pack 6a
<http://tinyurl.com/5pb4h>
* Microsoft Windows NT Server 4.0 Terminal Server Edition Service Pack 6
<http://tinyurl.com/3pmln>
* Microsoft Windows 2000 Service Pack 3 and Microsoft Windows 2000 Service Pack 4
<http://tinyurl.com/6e79q>
* Microsoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2
<http://tinyurl.com/5wks9>
* Microsoft Windows XP 64-Bit Edition Service Pack 1
<http://tinyurl.com/5edyt>
* Microsoft Windows XP 64-Bit Edition Version 2003
<http://tinyurl.com/43kob>
* Microsoft Windows Server 2003
<http://tinyurl.com/5swgd>
* Microsoft Windows Server 2003 64-Bit Edition
<http://tinyurl.com/43kob>

Technical Description:
----------------------
* HyperTerminal Vulnerability - CAN-2004-0568: A remote code execution vulnerability exists in HyperTerminal because of a buffer overrun. An attacker could exploit the vulnerability by constructing a malicious HyperTerminal session file that could potentially allow remote code execution. An attacker could then persuade a user to open this file. This vulnerability could attempt to be exploited through a malicious Telnet URL if HyperTerminal has been set as the default Telnet client. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, user interaction is required to exploit this vulnerability

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Cheers,
Russ - Senior Scientist - TruSecure Corporation/NTBugtraq Editor

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