bugtraq - Re: IpSwitch IMAP Server LOGON stack overflow

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Date: Wed, 8 Jun 2005 16:55:33 -0400
From: <nolimit@...eiso.org>
To: <dave@...unitysec.com>
Cc: Full-Disclosure@...ts.grok.org.uk, vulnwatch@...nwatch.org,
	bugtraq@...urityfocus.com
Subject: Re: IpSwitch IMAP Server LOGON stack overflow

Ah, you refer to this one.
"The first vulnerability specifically exists in the handling of a long 
username to the LOGIN command. A long username argument of approximately 
2,000 bytes will cause a stack based unicode string buffer overflow 
providing the attacker with partial control over EIP. As this 
vulnerability is in the LOGIN command itself, valid credentials are not 
required. "

Later it reads 
"The second vulnerability also exists in the handling of the LOGIN 
command username argument, however it lends itself to easier 
exploitation."

I guess I shouldn't have trusted this statement :) 
Perhaps I'll take a look at this one next, or just use your CANVAS example :)
Cheers
nolimit

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