Vulnerability Details 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_.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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.3%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2023-3181
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cpe:2.3:a:splashtop:software_updater:-
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cpe:2.3:a:splashtop:software_updater:1.5.6.16
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cpe:2.3:a:splashtop:software_updater:1.5.6.21
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cpe:2.3:o:microsoft:windows:-