CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-49797 – Local Privilege Escalation in pyinstaller on Windows
https://notcve.org/view.php?id=CVE-2023-49797
PyInstaller bundles a Python application and all its dependencies into a single package. A PyInstaller built application, elevated as a privileged process, may be tricked by an unprivileged attacker into deleting files the unprivileged user does not otherwise have access to. A user is affected if **all** the following are satisfied: 1. The user runs an application containing either `matplotlib` or `win32com`. 2. The application is ran as administrator (or at least a user with higher privileges than the attacker). 3. • https://github.com/pyinstaller/pyinstaller/pull/7827 https://github.com/pyinstaller/pyinstaller/security/advisories/GHSA-9w2p-rh8c-v9g5 https://github.com/python/cpython/blob/0fb18b02c8ad56299d6a2910be0bab8ad601ef24/Lib/shutil.py#L623 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2K2XIQLEMZIKUQUOWNDYWTEWYQTKMAN7 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ISRWT34FAF23PUOLVZ7RVWBZMWPDR5U7 • CWE-379: Creation of Temporary File in Directory with Insecure Permissions CWE-732: Incorrect Permission Assignment for Critical Resource •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 1CVE-2019-16784 – Local Privilege Escalation present only on the Windows version of PyInstaller
https://notcve.org/view.php?id=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:\Windows\Temp). 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). En PyInstaller versiones anteriores a 3.6, solo sobre Windows, se presenta una vulnerabilidad de escalada de privilegios local en este caso particular: si un software que usa PyInstaller en modo "onefile" es activado por un usuario privilegiado (al menos más que el actual) que tiene su "TempPath" resolviendo en un directorio de tipo world writable. Este es el caso, por ejemplo, si el software es iniciado como un servicio o como una tarea programada utilizando una cuenta system (TempPath será C:\Windows\Temp). • https://github.com/Ckrielle/CVE-2019-16784-POC https://github.com/pyinstaller/pyinstaller/security/advisories/GHSA-7fcj-pq9j-wh2r • CWE-250: Execution with Unnecessary Privileges CWE-732: Incorrect Permission Assignment for Critical Resource •