[23229] in bugtraq
Re: NSFOCUS SA2001-07 : ActivePerl PerlIS.dll Remote Buffer
daemon@ATHENA.MIT.EDU (securityfocus.com.drew@overt.org)
Fri Nov 23 17:32:34 2001
Date: 23 Nov 2001 04:22:07 -0000
Message-ID: <20011123042207.11342.qmail@mail.securityfocus.com>
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From: <securityfocus.com.drew@overt.org>
To: bugtraq@securityfocus.com
Mailer: SecurityFocus
In-Reply-To: <20011116015506.17854.qmail@mail.securityfocus.com>
>From: Jim <raxor@dexlink.com>
>Has anyone been able to duplicate this bug ?
A *default* install of IIS5 (tested in w2k pro) with
ActivePerl 5.6.1.629 is *not* vulnerable to this bug. In
order to become vulnerable, you must disable
the "Check that file exists" option for PerlIS.dll. (In
order to do this, open up the IIS MMC, right click on a
(virtual) directory in your web server,
choose "Properties", click on the "Configuration..."
button, highlight the ".plx" item, click "Edit", and then
uncheck "Check that file exists".)
>Am I wrong or does the ISAPI version of ActivePerl
>execute .plx files and not .pl as mentioned in the
>advisory ?
On my test machine (win2k pro), by default perl.exe
handles .pl and perlIS.dll handles .plx
--
^Drew
http://guh.nu
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