CVE-2023-3181: The C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe process creates a folder at C:\Wind
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Routine
HIGH 7.8UPGRADEUPGRADEUPGRADE
CVE-2023-3181 is a high-severity flaw (CVSS 7.8) affecting mirroring360 receiver, mirroring360 sender, splashtop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
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Quick answers
How do I fix CVE-2023-3181?
mirroring360 receiver: upgrade to 2.4.0.1; mirroring360 sender: upgrade to 1.3.0.0; splashtop: upgrade to 3.5.6.0, 3.5.8.0. Exact commands for each OS are on this page.
Is CVE-2023-3181 being exploited?
CVE-2023-3181 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-3181 affect?
CVE-2023-3181 affects mirroring360 receiver, mirroring360 sender, splashtop. Severity is high (CVSS 7.8). 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
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