CVE-2021-41526
Windows Installer (MSI) InstallScript Privilege Escalation Vulnerability
Description
A vulnerability has been reported in the windows installer (MSI) built with InstallScript custom action. This vulnerability may allow privilege escalation when invoked ‘repair’ of the MSI which has an InstallScript custom action.
INFO
Published Date :
March 29, 2023, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 6:26 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-41526 has a 2 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-2021-41526.
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).
public disclosure
PowerShell
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-41526 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41526 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 http://seclists.org/fulldisclosure/2024/Apr/24 Added Reference https://community.flexera.com/t5/InstallShield-Knowledge-Base/CVE-2021-41526-Privilege-escalation-vulnerability-during-MSI/ta-p/218137/jump-to/first-unread-message Added Reference https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0011/MNDT-2021-0011.md -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 19, 2024
Action Type Old Value New Value Added Reference Flexera Software LLC http://seclists.org/fulldisclosure/2024/Apr/24 [No types assigned] -
Initial Analysis by [email protected]
Apr. 06, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://community.flexera.com/t5/InstallShield-Knowledge-Base/CVE-2021-41526-Privilege-escalation-vulnerability-during-MSI/ta-p/218137/jump-to/first-unread-message No Types Assigned https://community.flexera.com/t5/InstallShield-Knowledge-Base/CVE-2021-41526-Privilege-escalation-vulnerability-during-MSI/ta-p/218137/jump-to/first-unread-message Vendor Advisory Changed Reference Type https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0011/MNDT-2021-0011.md No Types Assigned https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0011/MNDT-2021-0011.md Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:flexera:revenera_installshield:*:*:*:*:*:windows:*:* versions up to (excluding) 2021 *cpe:2.3:a:flexera:revenera_installshield:2021:-:*:*:*:windows:*:* *cpe:2.3:a:flexera:revenera_installshield:2021:r1:*:*:*: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-2021-41526 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-2021-41526
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
0.13399
percentile