high7.8
CVE-2023-3181
The C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe process creates a folder at C:\Windows\Temp~nsu.tmp and copies itself to it as Au_.e…
Impact
The C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe process creates a folder at C:\Windows\Temp~nsu.tmp and copies itself to it as Au_.exe. The C:\Windows\Temp~nsu.tmp\Au_.exe file is automatically launched as SYSTEM when the system reboots or when a standard user runs an MSI repair using Splashtop Streamer’s Windows Installer. Since the C:\Windows\Temp~nsu.tmp folder inherits permissions from C:\Windows\Temp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Splashtop | Mirroring360 Receiver | before 2.4.0.1 |
| Splashtop | Mirroring360 Sender | before 1.3.0.0 |
| Splashtop | Splashtop | before 3.5.6.0 before 3.5.8.0 |
| Splashtop | Splashtop For Rmm | before 3.5.8.0 |
| Splashtop | Streamer | before 3.5.6.0 |