Rapid7

module

Webmin Upload Authenticated RCE

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Disclosed
Jan 17, 2019
Created
Mar 19, 2019

Description

This module exploits an arbitrary command execution vulnerability in Webmin
1.900 and lower versions. Any user authorized to the "Upload and Download"
module can execute arbitrary commands with root privileges.

In addition, if the 'Running Processes' (proc) privilege is set the user can
accurately determine which directory to upload to. Webmin application files
can be written/overwritten, which allows remote code execution. The module
has been tested successfully with Webmin 1.900 on Ubuntu v18.04.

Using GUESSUPLOAD attempts to use a default installation path in order to
trigger the exploit.

Authors

AkkuS Özkan Mustafa Akkuş
Ziconius [email protected]

Platform

Unix

Architectures

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/unix/webapp/webmin_upload_exec
    msf exploit(webmin_upload_exec) > show targets
        ...targets...
    msf exploit(webmin_upload_exec) > set TARGET < target-id >
    msf exploit(webmin_upload_exec) > show options
        ...show and set options...
    msf exploit(webmin_upload_exec) > exploit
Title
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