CVE-2023-37250
Unity Parsec Privilege Escalation TOCTOU Race Condition
Description
Unity Parsec has a TOCTOU race condition that permits local attackers to escalate privileges to SYSTEM if Parsec was installed in "Per User" mode. The application intentionally launches DLLs from a user-owned directory but intended to always perform integrity verification of those DLLs. This affects Parsec Loader versions through 8. Parsec Loader 9 is a fixed version.
INFO
Published Date :
Aug. 20, 2023, 8:15 a.m.
Last Modified :
Aug. 25, 2023, 4:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
Public PoC/Exploit Available at Github
CVE-2023-37250 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-37250.
| URL | Resource |
|---|---|
| https://support.parsec.app/hc/en-us/articles/18311425588237-CVE-2023-37250 | Third Party Advisory |
| https://unity3d.com | Product |
| https://www.kb.cert.org/vuls/id/287122 | Third Party Advisory US Government Resource |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
PoC
PowerShell C++
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-37250 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-37250 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 25, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://support.parsec.app/hc/en-us/articles/18311425588237-CVE-2023-37250 No Types Assigned https://support.parsec.app/hc/en-us/articles/18311425588237-CVE-2023-37250 Third Party Advisory Changed Reference Type https://unity3d.com No Types Assigned https://unity3d.com Product Changed Reference Type https://www.kb.cert.org/vuls/id/287122 No Types Assigned https://www.kb.cert.org/vuls/id/287122 Third Party Advisory, US Government Resource Added CWE NIST CWE-367 Added CPE Configuration OR *cpe:2.3:a:unity:parsec:*:*:*:*:*:*:*:* versions up to (excluding) 9.0 -
CVE Modified by [email protected]
Aug. 21, 2023
Action Type Old Value New Value Changed Description Unity Parsec before 8 has a TOCTOU race condition that permits local attackers to escalate privileges to SYSTEM if Parsec was installed in "Per User" mode. The application intentionally launches DLLs from a user-owned directory but intended to always perform integrity verification of those DLLs. Unity Parsec has a TOCTOU race condition that permits local attackers to escalate privileges to SYSTEM if Parsec was installed in "Per User" mode. The application intentionally launches DLLs from a user-owned directory but intended to always perform integrity verification of those DLLs. This affects Parsec Loader versions through 8. Parsec Loader 9 is a fixed version. Added Reference https://support.parsec.app/hc/en-us/articles/18311425588237-CVE-2023-37250 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-37250 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-37250
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05899
percentile