CVE-2023-3181

The C:Program Files (x86)SplashtopSplashtop Software Updateruninst.exe process creates a folder at C:WindowsTemp~nsu.tmp and copies itself to it as Au_.exe. The C:WindowsTemp~nsu.tmpAu_.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:WindowsTemp~nsu.tmp folder inherits permissions from C:WindowsTemp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges.

Date published : 2024-01-25

https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md