module

Nuuo Central Management Server Authenticated Arbitrary File Upload

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Disclosed
2018-10-11
Created
2019-03-19

Description

The COMMITCONFIG verb is used by a CMS client to upload and modify the configuration of the
CMS Server.
The vulnerability is in the "FileName" parameter, which accepts directory traversal (..\..\)
characters. Therefore, this function can be abused to overwrite any files in the installation
drive of CMS Server.

This vulnerability is exploitable in CMS versions up to and including v2.4.

This module will either use a provided session number (which can be guessed with an auxiliary
module) or attempt to login using a provided username and password - it will also try the
default credentials if nothing is provided.

This module will overwrite the LicenseTool.dll file in the CMS Server installation. If the module
fails to restore LicenseTool.dll then the installation will be corrupted and NCS Server will
not execute successfully.

Author

Pedro Ribeiro pedrib@gmail.com

Platform

Windows

Architectures

x86

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