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Timbuktu Pro 2.0b650 DoS

daemon@ATHENA.MIT.EDU (Laurent LEVIER)
Mon Feb 14 14:31:14 2000

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Message-Id:  <4.2.0.58.20000211204020.00994c00@194.98.103.230>
Date:         Fri, 11 Feb 2000 20:43:30 +0100
Reply-To: Laurent LEVIER <llevier@ARGOSNET.COM>
From: Laurent LEVIER <llevier@ARGOSNET.COM>
X-To:         BUGTRAQ@SECURITYFOCUS.COM
To: BUGTRAQ@SECURITYFOCUS.COM

Cheers,

I found a Timbukto Pro (Remote Control NT Tool) vulnerability.

Concerned product : Timbuktu Pro 2.0b650 on Windows NT 4.0 until sp5

"Exploit" is :

- Connect and disconnect on port TCP/407 to make port TCP/1417 listening
- Connect on port TCP/1417 with a simple telnet.
- Disconnect from TCP/1417 (no data exchange).

Authentication protocol waits indefinitely.

This brings Timbukto Remote Control Denial-of-Service on control. Physical
contact is then needed to restart it.

Solution to get back operational:
	- Kill timbuktu process (using pslist/pskill for example)
	- Stop Timbuktu services
	- Start them again.

Patches:
	Not yet

Netopia is now aware of this.

Best regards


Laurent LEVIER
IT Systems & Networks, Unix System Engineer
Security Specialist

Argosnet Security Server : http://www.Argosnet.com
"Le Veilleur Technologique", "The Technology Watcher"

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