Vulnerability ID: HTB23016 Reference: http://www.htbridge.ch/advisory/kofax_e_transactions_sender_sendbox_activex_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: