full-disclosure - Re: FW: [Fwd: Re[2]: Fun with event logs (semi-offtopic)]

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Date: Mon, 19 Feb 2007 13:13:35 -0800
From: Microsoft Security Response Center <secure@...rosoft.com>
To: "'BART. ....'" <need4angel@...mail.com>, "3APA3A@...URITY.NNOV.RU"
	<3APA3A@...URITY.NNOV.RU>
Cc: "full-disclosure@...ts.grok.org.uk" <full-disclosure@...ts.grok.org.uk>
Subject: Re: FW: [Fwd: Re[2]: Fun with event
	logs	(semi-offtopic)]

Hello 3APA3A,

Sorry for the delay in reporting the status of this case. The test teams have concluded their investigations and we have determined that this would fall into a next version type of fix.  This has already been fixed in Vista and since this is more of a tampering scenario rather than a security vulnerability we have decided not to address this issue in a bulletin or service pack. Please let me know if you have any concerns or questions regarding this decision. I will be closing this case out, but if you feel that we have not correctly reached the correct conclusion then I can easily reopen this case. Thank you again for reporting this issue to us.

Thanks,
Dave
MSRC

-----Original Message-----
From: full-disclosure-bounces@...ts.grok.org.uk [mailto:full-disclosure-bounces@...ts.grok.org.uk] On Behalf Of BART. ....
Sent: Wednesday, December 27, 2006 8:11 AM
To: 3APA3A@...URITY.NNOV.RU
Cc: full-disclosure@...ts.grok.org.uk
Subject: [Full-disclosure] FW: [Fwd: Re[2]: Fun with event logs (semi-offtopic)]

Dear 3APA3A,

Correct me if i am wrong, but it looks like it's documented behavior of the event viewer.
This is what i found:

Note that there is no way to log a string that contains %n, where n is an integer value. This syntax is used in IPv6 addresses, so it is a problem to log an event message that contains an IPv6 address. For example, if the message text contains %1, the event viewer treats it as an insertion string.
If the string contains %%1, the event viewer literally uses %%1.

Source:
http://msdn2.microsoft.com/en-us/library/aa363679.aspx

Greetz,
B

>-------- Original Message --------
>Subject:       Re[2]: [Full-disclosure] Fun with event logs (semi-offtopic)
>Date:  Thu, 21 Dec 2006 20:13:14 +0300
>From:  3APA3A <3APA3A@...URITY.NNOV.RU>
>Reply-To:      3APA3A <3APA3A@...URITY.NNOV.RU>
>Organization:  http://www.security.nnov.ru
>To:    Michele Cicciotti <mc@...msa.net>
>CC:    full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
>References:    <20061221122536.6AA7A1D8F7C@...ertolla.itapac.net>
><20061221152104.A96731D8F79@...ertolla.itapac.net>
>
>
>
>Dear Michele Cicciotti,
>
>--Thursday, December 21, 2006, 6:20:54 PM, you wrote to
>full-disclosure@...ts.grok.org.uk:
>
>>>There  is  interesting  thing  with  event  logging on Windows. The
>>>only security  aspect  of  it  is  event log record tampering and
>>>performance degradation,  but  it may become sensitive is some 3rd
>>>party software is used for automated event log analysis.
>
>MC> I doubt this. The event logs don't contain the actual formatted
>MC> string, because the template string is localized and only retrieved
>MC> when the entry is displayed - what is logged is just a message id
>MC> and the string inserts (see documentation for EVENTLOGRECORD).
>MC> FormatMessage (which is used to build the full message to display
>MC> to the user) isn't the culprit, either, because it doesn't operate
>MC> recursively (that would have bizarre consequences, since
>
>As  I  wrote,  my message is semi-offtopic, because it's more fun than
>any  security  vulnerability  here.
>
>Yes,  probably  this  bug  only  affects  event  viewer  itself. I
>don't understand  how  and why Microsoft achieved this effect in event
>viewer, which  is,  by  the  way,  security tool, and if it's hard for
>different vendor  to  make  same  mistake. It doesn't look like Easter
>egg, but if FormatMessage  does  not recursion it needs to be specially
>coded and it does  nothing  except this bug. Bug, that needs to be
>specially coded is new funny bug category, isn't it?
>
>--
>~/ZARAZA
>http://www.security.nnov.ru/
>
>

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/