Description
Various Ricoh printer drivers allow escalation of privileges on Windows systems.
For vulnerable drivers, a low-privileged user can read/write files within the `RICOH_DRV` directory and its subdirectories.
`PrintIsolationHost.exe`, a Windows process running as NT AUTHORITY\SYSTEM, loads driver-specific DLLs during the installation of a printer. A user can elevate to SYSTEM by writing a malicious DLL to the vulnerable driver directory and adding a new printer with a vulnerable driver.
This module leverages the `prnmngr.vbs` script to add and delete printers. Multiple runs of this module may be required given successful exploitation is time-sensitive.
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/local/ricoh/driver_privescmsf undefined(driver_privesc) > show actions ...actions...msf undefined(driver_privesc) > set ACTION < action-name >msf undefined(driver_privesc) > show options ...show and set options...msf undefined(driver_privesc) > runPrioritise with Active Threat Intelligence
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