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Re: [Full-disclosure] Fun with event logs (semi-offtopic)
From: endrazine <endrazine () gmail com>
Date: Thu, 21 Dec 2006 14:09:43 +0100

Heya lists & 3APA3A,

3APA3A a écrit :
Dear full-disclosure () lists 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.

The   problem   is   a  kind  of  "Format  string"  vulnerability  where
user-supplied  input  is  used  for  event log record. For ReportEvent()
function  %1,  %2,  etc  have  a  special  meaning and are replaced with
corresponding string from lpStrings.
It looks more like a variable replacement (like $0 $1 ... in bash shell) than a format string issue to me.
And it seems indeed to be a relevant information disclosure bug.


Cheers,

endrazine-


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