CVE-2019-16784

In PyInstaller before version 3.6, only on Windows, a local privilege escalation vulnerability is present in this particular case: If a software using PyInstaller in "onefile" mode is launched by a privileged user (at least more than the current one) which have his "TempPath" resolving to a world writable directory. This is the case for example if the software is launched as a service or as a scheduled task using a system account (TempPath will be C:WindowsTemp). In order to be exploitable the software has to be (re)started after the attacker launch the exploit program, so for a service launched at startup, a service restart is needed (e.g. after a crash or an upgrade).

Link	Resource
https://github.com/pyinstaller/pyinstaller/security/advisories/GHSA-7fcj-pq9j-wh2r	Patch Third Party Advisory

Configuration 1

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Published : 2020-01-14 08:15

Updated : 2020-10-09 01:40

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NVD link : CVE-2019-16784

Mitre link : CVE-2019-16784

Microsoft

Pyinstaller

Windows

CWE-732