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).
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pyinstaller | Pyinstaller | * | 3.6 (excluding) |