module

Advantech iView NetworkServlet Command Injection

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Disclosed
2022-06-28
Created
2022-08-29

Description

Versions of Advantech iView software below `5.7.04.6469` are
vulnerable to an unauthenticated command injection vulnerability
via the `NetworkServlet` endpoint.
The database backup functionality passes a user-controlled parameter,
`backup_file` to the `mysqldump` command. The sanitization functionality only
tests for SQL injection attempts and directory traversal, so leveraging the
`-r` and `-w` `mysqldump` flags permits exploitation.
The command injection vulnerability is used to write a payload on the target
and achieve remote code execution as NT AUTHORITY\SYSTEM.

Authors

rgod
y4er
Shelby Pace

Platform

Windows

Architectures

x86, x64, cmd

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