CVE-2023-3181 – Insecure Permissions in Splashtop Software Updater
https://notcve.org/view.php?id=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. El proceso C:\Program Files (x86)\Splashtop\Splashtop Software Updater\uninst.exe crea una carpeta en C:\Windows\Temp~nsu.tmp y se copia en ella como Au_.exe. El archivo C:\Windows\Temp~nsu.tmp\Au_.exe se inicia automáticamente como SISTEMA cuando el sistema se reinicia o cuando un usuario estándar ejecuta una reparación de MSI utilizando el instalador de Windows de Splashtop Streamer. • https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md • CWE-379: Creation of Temporary File in Directory with Insecure Permissions •
CVE-2021-42713
https://notcve.org/view.php?id=CVE-2021-42713
Splashtop Remote Client (Personal Edition) through 3.4.6.1 creates a Temporary File in a Directory with Insecure Permissions. Splashtop Remote Client (Personal Edition) versiones hasta 3.4.6.1, crea un archivo temporal en un directorio con permisos no seguros • https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0006/MNDT-2022-0006.md https://www.splashtop.com/security • CWE-668: Exposure of Resource to Wrong Sphere •
CVE-2021-42714
https://notcve.org/view.php?id=CVE-2021-42714
Splashtop Remote Client (Business Edition) through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions. Splashtop Remote Client (Business Edition) versiones hasta 3.4.8.3, crea un archivo temporal en un directorio con permisos no seguros • https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0005/MNDT-2022-0005.md https://www.splashtop.com/security • CWE-668: Exposure of Resource to Wrong Sphere •
CVE-2021-42712
https://notcve.org/view.php?id=CVE-2021-42712
Splashtop Streamer through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions. Splashtop Streamer versiones hasta 3.4.8.3, crea un archivo temporal en un directorio con permisos no seguros • https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0007/MNDT-2022-0007.md https://www.splashtop.com/security • CWE-668: Exposure of Resource to Wrong Sphere •
CVE-2020-12431
https://notcve.org/view.php?id=CVE-2020-12431
A Windows privilege change issue was discovered in Splashtop Software Updater before 1.5.6.16. Insecure permissions on the configuration file and named pipe allow for local privilege escalation to NT AUTHORITY/SYSTEM, by forcing a permission change to any Splashtop files and directories, with resultant DLL hijacking. This product is bundled with Splashtop Streamer (before 3.3.8.0) and Splashtop Business (before 3.3.8.0). Se descubrió un problema de cambio de privilegios de Windows en Splashtop Software Updater versiones anteriores a la versión 1.5.6.16. Los permisos no seguros en el archivo de configuración y la tubería nombrada permiten una escalada de privilegios locales a NT AUTHORITY/SYSTEM, al forzar un cambio de permiso a cualquier archivo y directorio de Splashtop, con el secuestro de DLL resultante. • https://improsec.com/tech-blog/privilege-escalation-vulnerability-in-splashtop-streamer https://support-splashtopbusiness.splashtop.com/hc/en-us/articles/360042648231-Splashtop-Streamer-version-3-3-8-0-for-Windows-released-includes-SOS-version-3-3-8-0 • CWE-732: Incorrect Permission Assignment for Critical Resource •