module

Trend Micro OfficeScan Remote Code Execution

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Disclosed
2017-10-07
Created
2018-05-30

Description

This module exploits the authentication bypass and command injection vulnerability together. Unauthenticated users can execute a
terminal command under the context of the web server user.

The specific flaw exists within the management interface, which listens on TCP port 443 by default. The Trend Micro Officescan product
has a widget feature which is implemented with PHP. Talker.php takes ack and hash parameters but doesn't validate these values, which
leads to an authentication bypass for the widget. Proxy.php files under the mod TMCSS folder take multiple parameters but the process
does not properly validate a user-supplied string before using it to execute a system call. Due to combination of these vulnerabilities,
unauthenticated users can execute a terminal command under the context of the web server user.

Authors

mr_me mr_me@offensive-security.com
Mehmet Ince mehmet@mehmetince.net

Platform

Windows

Architectures

x86, x64

References

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/http/trendmicro_officescan_widget_exec
    msf exploit(trendmicro_officescan_widget_exec) > show targets
        ...targets...
    msf exploit(trendmicro_officescan_widget_exec) > set TARGET < target-id >
    msf exploit(trendmicro_officescan_widget_exec) > show options
        ...show and set options...
    msf exploit(trendmicro_officescan_widget_exec) > exploit
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