full-disclosure - Vulnerability discloses PIN used in Microsoft Excel secure printing

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Message-ID: <AANLkTi=At0Xnju8motVq-ef7RDLxJzb29Dsze3SBppdG@mail.gmail.com>
Date: Mon, 31 Jan 2011 19:01:59 +1100
From: Ed Murphy <ed.b.murphy@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Vulnerability discloses PIN used in Microsoft
	Excel secure printing

Hello list,

Stumbled across this today.  It appears Excel spreadsheets store
printer information including the PIN you might use when trying to do
a "secure" print.

http://insecureprinting.com/Microsoft_Excel_Spreadsheets_Expose_User_PIN_Used_for_Confidential_Secure_Printing.pdf

The paper is quite thorough and shows that in most cases the PIN is
stored in clear text in the spreadsheet, though some printer vendors
try to obfuscate the PIN (though not very successfully).

Thanks,
Ed

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