Known Exploited Vulnerability
7.5
HIGH
CVE-2021-36942
Microsoft Windows Local Security Authority (LSA) S - [Actively Exploited]
Description

Windows LSA Spoofing Vulnerability

INFO

Published Date :

Aug. 12, 2021, 6:15 p.m.

Last Modified :

July 26, 2024, 7:29 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
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 Local Security Authority (LSA) contains a spoofing vulnerability allowing an unauthenticated attacker to call a method on the LSARPC interface and coerce the domain controller to authenticate against another server using NTLM.

Required Action :

Apply updates per vendor instructions.

Public PoC/Exploit Available at Github

CVE-2021-36942 has a 32 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-2021-36942 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_2008
2 Microsoft windows_server_2012
3 Microsoft windows_server_2016
4 Microsoft windows_server_2019
5 Microsoft windows_server_20h2
6 Microsoft windows_server_2004
7 Microsoft windows_server_2012_r2
8 Microsoft windows_server_2008_r2
9 Microsoft windows_server_2008_sp2
: Total Affected Vendor : 1 | Products : 9
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-2021-36942.

URL Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942 Patch Vendor Advisory
https://www.kb.cert.org/vuls/id/405600 Exploit 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).

Profile Photo
Faizan-Khanx/OSCP

This repository is designed to provide a comprehensive collection of study materials, notes, and resources for the Offensive Security Certified Professional (OSCP) exam. It covers all key topics from basic to advanced, helping aspiring penetration testers to prepare efficiently for the exam.

cybersecurity hacking oscp oscp-guide oscp-journey oscp-prep

Updated: 1 month, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : Oct. 4, 2024, 4:43 p.m. This repo has been linked 75 different CVEs too.
Profile Photo
EnriqueSanchezdelVillar/NotesHck

None

Python C Shell PHP PowerShell ASP.NET

Updated: 1 month, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 1, 2024, 2:21 p.m. This repo has been linked 66 different CVEs too.
Profile Photo
MinoTauro2020/PurpleTeam-ThreatHunting

Principales Ataques para desarrollar el servicio

Updated: 2 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 3, 2024, 7:41 a.m. This repo has been linked 7 different CVEs too.
Profile Photo
exfilt/CheatSheet

OSCP and stuffs

Updated: 3 months ago
1 stars 0 fork 0 watcher
Born at : April 19, 2024, 8:18 p.m. This repo has been linked 63 different CVEs too.
Profile Photo
SenukDias/OSCP_cheat

None

Python C Shell

Updated: 4 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : March 29, 2024, 5:29 a.m. This repo has been linked 62 different CVEs too.
Profile Photo
OriolOriolOriol/ADTech

None

Updated: 2 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : March 7, 2024, 4:16 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
txuswashere/OSCP

OffSec Certified Professional Certification (OSCP).

oscp oscp-cheatsheet oscp-guide oscp-journey oscp-prep oscp-tools offsec-certified-professional-certification offensive-security offensivesecurity awesome-list awesome-lists cheatsheet offensive-ops

Updated: 8 months, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : March 5, 2024, 9:21 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
parth45/cheatsheet

Oscp-notes

Updated: 3 months ago
1 stars 0 fork 0 watcher
Born at : March 3, 2024, 5:12 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
oscpname/OSCP_cheat

None

Python C Shell

Updated: 10 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Jan. 7, 2024, 10:22 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
SirElmard/ethical_hacking

Ethical Hacking Repository

Python C Shell

Updated: 10 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Jan. 2, 2024, 9:12 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
revanmalang/OSCP

OSCP Cheat Sheet

cheatsheet oscp

Python C Shell

Updated: 3 months, 2 weeks ago
7 stars 4 fork 4 watcher
Born at : Dec. 17, 2023, 12:31 p.m. This repo has been linked 61 different CVEs too.
Profile Photo
csb21jb/Pentesting-Notes

These are my personal penetration testing notes from taking examinations from pnpt, oscp, and crto

Updated: 1 year ago
0 stars 0 fork 0 watcher
Born at : Oct. 30, 2023, 12:40 p.m. This repo has been linked 5 different CVEs too.
Profile Photo
xhref/OSCP

None

Python C Shell

Updated: 1 year, 1 month ago
0 stars 0 fork 0 watcher
Born at : Oct. 20, 2023, 5:26 p.m. This repo has been linked 61 different CVEs too.
Profile Photo
kgwanjala/oscp-cheatsheet

None

Python C Shell

Updated: 1 year, 1 month ago
0 stars 0 fork 0 watcher
Born at : Oct. 20, 2023, 4:53 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
gecr07/HTB-Academy

None

Updated: 1 year, 2 months ago
0 stars 0 fork 0 watcher
Born at : Sept. 11, 2023, 5:25 p.m. This repo has been linked 3 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-2021-36942 vulnerability anywhere in the article.

  • Hackread - Latest Cybersecurity, Tech, Crypto & Hacking News
NTLM Credential Theft Risk in Python Apps Threaten Windows Security

New research reveals critical vulnerabilities in Python applications for Windows including Snowflake, Gradio, Jupyter, and Streamlit that could allow hackers to steal NTLM credentials. Learn how to pr ... Read more

Published Date: Aug 26, 2024 (2 months, 4 weeks ago)
CVE-2021-36942

The following table lists the changes that have been made to the CVE-2021-36942 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]

    Jul. 26, 2024

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* OR *cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19041.1165 *cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.4583 *cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.2114 *cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19042.1165
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Dec. 28, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CWE Remap by [email protected]

    Aug. 08, 2023

    Action Type Old Value New Value
    Changed CWE CWE-290 NVD-CWE-Other
  • Modified Analysis by [email protected]

    Apr. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.kb.cert.org/vuls/id/405600 No Types Assigned https://www.kb.cert.org/vuls/id/405600 Exploit, Third Party Advisory, US Government Resource
  • CVE Modified by [email protected]

    Oct. 06, 2021

    Action Type Old Value New Value
    Added Reference https://www.kb.cert.org/vuls/id/405600 [No Types Assigned]
  • Initial Analysis by [email protected]

    Aug. 20, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
    Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36942 Patch, Vendor Advisory
    Added CWE NIST CWE-290
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
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-2021-36942 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-2021-36942 weaknesses.

Exploit Prediction

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

81.28 }} 1.07%

score

0.98458

percentile

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