Known Exploited Vulnerability
7.8
HIGH
CVE-2024-21338
Microsoft Windows Kernel Exposed IOCTL with Insuff - [Actively Exploited]
Description

Windows Kernel Elevation of Privilege Vulnerability

INFO

Published Date :

Feb. 13, 2024, 6:15 p.m.

Last Modified :

Nov. 29, 2024, 3:27 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Microsoft Windows Kernel contains an exposed IOCTL with insufficient access control vulnerability within the IOCTL (input and output control) dispatcher in appid.sys that allows a local attacker to achieve privilege escalation.

Required Action :

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes :

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338; https://nvd.nist.gov/vuln/detail/CVE-2024-21338

Public PoC/Exploit Available at Github

CVE-2024-21338 has a 18 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-21338 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_server_2019
2 Microsoft windows_10_1809
3 Microsoft windows_10_21h2
4 Microsoft windows_10_22h2
5 Microsoft windows_server_2022
6 Microsoft windows_11_21h2
7 Microsoft windows_11_22h2
8 Microsoft windows_11_23h2
9 Microsoft windows_server_2022_23h2
10 Microsoft windows_server_23h2
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-2024-21338.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 Patch Vendor Advisory
https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/ Exploit Technical Description Third Party Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 Patch 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).

None

Python

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : Nov. 22, 2024, 12:32 a.m. This repo has been linked 21 different CVEs too.

Windows AppLocker Driver (appid.sys) LPE

exploit kernel lpe windowd

C++

Updated: 1 week, 2 days ago
41 stars 12 fork 12 watcher
Born at : July 29, 2024, 1:18 p.m. This repo has been linked 1 different CVEs too.

None

C++

Updated: 2 weeks ago
38 stars 13 fork 13 watcher
Born at : June 23, 2024, 6:03 a.m. This repo has been linked 1 different CVEs too.

Latest CVEs with their Proof of Concept exploits.

Python

Updated: 2 days, 21 hours ago
11 stars 2 fork 2 watcher
Born at : May 24, 2024, 11:02 a.m. This repo has been linked 77 different CVEs too.

Local Privilege Escalation from Admin to Kernel vulnerability on Windows 10 and Windows 11 operating systems with HVCI enabled.

Updated: 3 months, 1 week ago
7 stars 3 fork 3 watcher
Born at : May 18, 2024, 3:38 p.m. This repo has been linked 1 different CVEs too.

PoC for the Untrusted Pointer Dereference in the appid.sys driver

C

Updated: 1 month ago
13 stars 6 fork 6 watcher
Born at : April 23, 2024, 7:09 p.m. This repo has been linked 1 different CVEs too.

Fork of https://github.com/hakaioffsec/CVE-2024-21338

C++ C

Updated: 5 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : April 17, 2024, 10:16 a.m. This repo has been linked 1 different CVEs too.

Local Privilege Escalation from Admin to Kernel vulnerability on Windows 10 and Windows 11 operating systems with HVCI enabled.

C++ C

Updated: 3 days, 14 hours ago
288 stars 60 fork 60 watcher
Born at : April 13, 2024, 5:53 a.m. This repo has been linked 1 different CVEs too.

CVE-2024-21338 Windows Kernel Elevation of Privilege Vulnerability Zero-day

Updated: 8 months, 3 weeks ago
4 stars 0 fork 0 watcher
Born at : March 7, 2024, 8:09 p.m. This repo has been linked 1 different CVEs too.

CVE-2024-21338 Windows Kernel Elevation of Privilege Vulnerability

Updated: 8 months, 4 weeks ago
8 stars 1 fork 1 watcher
Born at : March 5, 2024, 6:29 p.m. This repo has been linked 1 different CVEs too.

Fetch github trending every day and push to telegram channel

Python

Updated: 4 months, 2 weeks ago
18 stars 1 fork 1 watcher
Born at : Feb. 29, 2024, 3:11 p.m. This repo has been linked 17 different CVEs too.

cobaltstrike的BypassUAC、提权dll插件

Updated: 3 days, 2 hours ago
72 stars 6 fork 6 watcher
Born at : Oct. 9, 2023, 3:52 a.m. This repo has been linked 7 different CVEs too.

Config files for my GitHub profile.

config github-config

Updated: 3 months, 1 week ago
4 stars 0 fork 0 watcher
Born at : Aug. 6, 2023, 3:08 p.m. This repo has been linked 2 different CVEs too.

使用 Github Actions 跟踪 Github 趋势项目。

Python

Updated: 4 months, 4 weeks ago
140 stars 33 fork 33 watcher
Born at : Aug. 9, 2022, 11:36 p.m. This repo has been linked 12 different CVEs too.

awesome game security [Welcome to PR]

game awesome cheat anticheat windows debug antidebug engine security anti driver kernel hack gamehack system android game-development web3 blockchain ethereum

Python

Updated: 2 days, 19 hours ago
2502 stars 363 fork 363 watcher
Born at : April 4, 2022, 6:07 a.m. This repo has been linked 21 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-21338 vulnerability anywhere in the article.

  • Kaspersky
Advanced threat predictions for 2025

We at Kaspersky’s Global Research and Analysis Team monitor over 900 APT (advanced persistent threat) groups and operations. At the end of each year, we take a step back to assess the most complex and ... Read more

Published Date: Nov 25, 2024 (1 week, 3 days ago)
  • SentinelOne
The Good, the Bad and the Ugly in Cybersecurity – Week 39

The Good | Feds Indict Russian Money Launderer & Sanction Two Illegal Virtual Exchanges Linked to Ransomware Operations The U.S. government doled out a heavy helping of sanctions this week in a coordi ... Read more

Published Date: Sep 27, 2024 (2 months, 1 week ago)
  • SentinelOne
The Good, the Bad and the Ugly in Cybersecurity – Week 39

The Good | Feds Indict Russian Money Launderer & Sanction Two Illegal Virtual Exchanges Linked to Ransomware Operations The U.S. government doled out a heavy helping of sanctions this week in a coordi ... Read more

Published Date: Sep 27, 2024 (2 months, 1 week ago)
  • BleepingComputer
New Mallox ransomware Linux variant based on leaked Kryptina code

An affiliate of the Mallox ransomware operation, also known as TargetCompany, was spotted using a slightly modified version of the Kryptina ransomware to attack Linux systems. This version, according ... Read more

Published Date: Sep 23, 2024 (2 months, 1 week ago)
  • The Hacker News
North Korean Hackers Deploy FudModule Rootkit via Chrome Zero-Day Exploit

Rootkit / Threat Intelligence A recently patched security flaw in Google Chrome and other Chromium web browsers was exploited as a zero-day by North Korean actors in a campaign designed to deliver the ... Read more

Published Date: Aug 31, 2024 (3 months ago)
  • The Cyber Express
North Korean Hackers Exploited Chromium Zero-Day to Deploy Rootkit

In a recent attack, a North Korean threat actor leveraged a zero-day vulnerability in Google’s Chromium browser to deploy the FudModule rootkit, targeting cryptocurrency firms for financial gain. Micr ... Read more

Published Date: Aug 30, 2024 (3 months ago)
  • The Hacker News
Microsoft Patches Zero-Day Flaw Exploited by North Korea’s Lazarus Group

A newly patched security flaw in Microsoft Windows was exploited as a zero-day by Lazarus Group, a prolific state-sponsored actor affiliated with North Korea. The security vulnerability, tracked as CV ... Read more

Published Date: Aug 19, 2024 (3 months, 2 weeks ago)

The following table lists the changes that have been made to the CVE-2024-21338 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.

  • Modified Analysis by [email protected]

    Nov. 29, 2024

    Action Type Old Value New Value
    Changed Reference Type https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/ No Types Assigned https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/ Exploit, Technical Description, Third Party Advisory
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338
  • Modified Analysis by [email protected]

    Oct. 10, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2024

    Action Type Old Value New Value
    Removed Reference Microsoft Corporation https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/
  • CVE Modified by [email protected]

    Jun. 11, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Jun. 10, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 29, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-822
  • CVE Modified by [email protected]

    May. 28, 2024

    Action Type Old Value New Value
    Removed CWE Microsoft Corporation CWE-822
  • Modified Analysis by [email protected]

    May. 23, 2024

    Action Type Old Value New Value
    Changed Reference Type https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/ No Types Assigned https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/ Exploit, Technical Description, Third Party Advisory
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Apr. 11, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-822
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Mar. 05, 2024

    Action Type Old Value New Value
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    Added Due Date 2024-03-25
    Added Date Added 2024-03-04
    Added Vulnerability Name Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability
  • CVE Modified by [email protected]

    Mar. 01, 2024

    Action Type Old Value New Value
    Added Reference Microsoft Corporation https://decoded.avast.io/janvojtesek/lazarus-and-the-fudmodule-rootkit-beyond-byovd-with-an-admin-to-kernel-zero-day/ [No types assigned]
  • Initial Analysis by [email protected]

    Feb. 20, 2024

    Action Type Old Value New Value
    Changed Reference Type https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.5458 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19044.4046 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19045.4046 *cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22000.2777 *cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22621.3155 *cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22631.3155 *cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.5458 *cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.20348.2322 *cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* versions up to (including) 10.0.25398.709
  • CVE Received by [email protected]

    Feb. 13, 2024

    Action Type Old Value New Value
    Added Description Windows Kernel Elevation of Privilege Vulnerability
    Added Reference Microsoft Corporation https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338 [No types assigned]
    Added CVSS V3.1 Microsoft Corporation AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-21338 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-2024-21338 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} -0.03%

score

0.32002

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability