Attacker Value
Moderate
(1 user assessed)
Exploitability
Low
(1 user assessed)
User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
0

Nuuo Central Management Server Authenticated Arbitrary File Upload

Disclosure Date: November 27, 2018 Last updated February 13, 2020
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

Nuuo Central Management Server v3.3 and prior allow authenticated users to upload files and specify the destination in a FileName header that is vulnerable to directory traversal.

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1
Ratings
  • Attacker Value
    Medium
  • Exploitability
    Low
Technical Analysis

Details

Details from module documentation in Metasploit.

The COMMITCONFIG verb is used by a CMS client to upload and modify the configuration of the CMS Server. An example is below:

COMMITCONFIG NUCM/1.0
User-Session-No: <session-number>
Filename: <filename>
FileType: <number>
Content-Lenght: <file-length>

<FILE_DATA>

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.

General Information

Additional Info

Technical Analysis