CVE-2019-16784 Detail
Current Description
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).
Source:
MITRE
View Analysis Description
Analysis Description
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).
Source:
MITRE
Severity
CVSS 3.x Severity and Metrics:
CNA: security-advisories@github.com
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Metrics:
Vector: (AV:L/AC:M/Au:N/C:P/I:P/A:P)
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
| CWE-269 |
Improper Privilege Management |
NIST
|
| CWE-250 |
Execution with Unnecessary Privileges |
security-advisories@github.com
|
Change History
2 change records found
- show changes
Initial Analysis -
1/24/2020 9:29:24 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
AND
OR
*cpe:2.3:a:pyinstaller:pyinstaller:*:*:*:*:*:*:*:* versions up to (excluding) 3.6
OR
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P) |
| Added |
CVSS V3.1 |
|
NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
NIST CWE-269 |
| Changed |
Reference Type |
https://github.com/pyinstaller/pyinstaller/security/advisories/GHSA-7fcj-pq9j-wh2r No Types Assigned |
https://github.com/pyinstaller/pyinstaller/security/advisories/GHSA-7fcj-pq9j-wh2r Patch, Third Party Advisory |
CVE Modified by MITRE -
1/14/2020 4:15:16 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
Record truncated, showing 500 of 682 characters.
View Entire Change Record
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 t |
Record truncated, showing 500 of 680 characters.
View Entire Change Record
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 |
Quick Info
CVE Dictionary Entry:
CVE-2019-16784
NVD Published Date:
01/14/2020
NVD Last Modified:
01/24/2020
|