CVE-2023-3181 (GCVE-0-2023-3181)

Vulnerability from cvelistv5 – Published: 2024-01-25 15:22 – Updated: 2025-06-03 18:21
VLAI
Title
Insecure Permissions in Splashtop Software Updater
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-03 18:21 UTC
CWE
  • CWE-379 - Creation of Temporary File in Directory with Insecure Permissions
Assigner
Google CNA under the Google root
CNA scorecard C 75/100 over 33 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splashtop Splashtop Software Updater Affected: 0 , < 1.5.6.21 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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