Vulnerability in Microsoft Windows
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/mandiant/Vulnerability-Disclosures/blob/master/2023/MNDT-2023-0015.md (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-3181?
- CVE-2023-3181 is a high-severity vulnerability in Microsoft Windows, classified under Creation of Temporary File in Directory with Insecure Permissions. CVSS score: 7.8/10. Published 2024-01-25.
- How severe is CVE-2023-3181?
- High severity. CVSS v3 base score is 7.8 out of 10.