Synology DiskStation Manager smart.cgi Remote Command Execution
Description
This module exploits a vulnerability found in Synology DiskStation Manager (DSM) versions < 5.2-5967-5, which allows the execution of arbitrary commands under root privileges after website authentication. The vulnerability is located in webman/modules/StorageManager/smart.cgi, which allows appending of a command to the device to be scanned. However, the command with drive is limited to 30 characters. A somewhat valid drive name is required, thus /dev/sd is used, even though it doesn't exist. To circumvent the character restriction, a wget input file is staged in /a, and executed to download our payload to /b. From there the payload is executed. A wfsdelay is required to give time for the payload to download, and the execution of it to run.
Author(s)
- Nigusu Kassahun
- h00die
Platform
Python
Architectures
python
Development
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/linux/http/synology_dsm_smart_exec_auth
msf exploit(synology_dsm_smart_exec_auth) > show targets
...targets...
msf exploit(synology_dsm_smart_exec_auth) > set TARGET < target-id >
msf exploit(synology_dsm_smart_exec_auth) > show options
...show and set options...
msf exploit(synology_dsm_smart_exec_auth) > exploit
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