Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

module

CommuniCrypt Mail 1.16 SMTP ActiveX Stack Buffer Overflow

Disclosed
May 19, 2010
Created
May 30, 2018

Description

This module exploits a stack buffer overflow in the ANSMTP.dll/AOSMTP.dll
ActiveX Control provided by CommuniCrypt Mail 1.16. By sending an overly
long string to the "AddAttachments()" method, an attacker may be able to
execute arbitrary code.

Authors

Lincoln
dookie

Platform

Windows

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


msf > use exploit/windows/browser/communicrypt_mail_activex
msf exploit(communicrypt_mail_activex) > show targets
...targets...
msf exploit(communicrypt_mail_activex) > set TARGET < target-id >
msf exploit(communicrypt_mail_activex) > show options
...show and set options...
msf exploit(communicrypt_mail_activex) > exploit

Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.