CVE-2021-33436
NoMachine for Windows No-Safe-DLL-Loading Local Privilege Escalation Vulnerability
Description
NoMachine for Windows prior to version 6.15.1 and 7.5.2 suffer from local privilege escalation due to the lack of safe DLL loading. This vulnerability allows local non-privileged users to perform DLL Hijacking via any writable directory listed under the system path and ultimately execute code as NT AUTHORITY\SYSTEM.
INFO
Published Date :
April 28, 2022, 11:15 a.m.
Last Modified :
Nov. 21, 2024, 6:08 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.3
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-2021-33436.
| URL | Resource |
|---|---|
| https://github.com/active-labs/Advisories/blob/master/2021/ACTIVE-2021-001.md | Third Party Advisory |
| https://knowledgebase.nomachine.com/SU05S00223 | Release Notes Vendor Advisory |
| https://knowledgebase.nomachine.com/SU05S00224 | Release Notes Vendor Advisory |
| https://knowledgebase.nomachine.com/TR05S10236 | Vendor Advisory |
| https://github.com/active-labs/Advisories/blob/master/2021/ACTIVE-2021-001.md | Third Party Advisory |
| https://knowledgebase.nomachine.com/SU05S00223 | Release Notes Vendor Advisory |
| https://knowledgebase.nomachine.com/SU05S00224 | Release Notes Vendor Advisory |
| https://knowledgebase.nomachine.com/TR05S10236 | Vendor Advisory |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-33436 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33436 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/active-labs/Advisories/blob/master/2021/ACTIVE-2021-001.md Added Reference https://knowledgebase.nomachine.com/SU05S00223 Added Reference https://knowledgebase.nomachine.com/SU05S00224 Added Reference https://knowledgebase.nomachine.com/TR05S10236 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
May. 07, 2022
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:L/AC:H/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/active-labs/Advisories/blob/master/2021/ACTIVE-2021-001.md No Types Assigned https://github.com/active-labs/Advisories/blob/master/2021/ACTIVE-2021-001.md Third Party Advisory Changed Reference Type https://knowledgebase.nomachine.com/SU05S00223 No Types Assigned https://knowledgebase.nomachine.com/SU05S00223 Release Notes, Vendor Advisory Changed Reference Type https://knowledgebase.nomachine.com/SU05S00224 No Types Assigned https://knowledgebase.nomachine.com/SU05S00224 Release Notes, Vendor Advisory Changed Reference Type https://knowledgebase.nomachine.com/TR05S10236 No Types Assigned https://knowledgebase.nomachine.com/TR05S10236 Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration AND OR *cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.15.1 *cpe:2.3:a:nomachine:nomachine:*:*:*:*:*:*:*:* versions from (including) 7.0 up to (excluding) 7.5.2 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33436 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-2021-33436
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
0.05635
percentile