7.8
HIGH
CVE-2023-21817
Windows Kerberos Authentication Bypass Privilege Escalation
Description

Windows Kerberos Elevation of Privilege Vulnerability

INFO

Published Date :

Feb. 14, 2023, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 7:43 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2023-21817 has a 14 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-2023-21817 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_10
2 Microsoft windows_server_2008
3 Microsoft windows_server_2012
4 Microsoft windows_server_2016
5 Microsoft windows_server_2019
6 Microsoft windows_10_1607
7 Microsoft windows_10_1809
8 Microsoft windows_10_20h2
9 Microsoft windows_10_21h2
10 Microsoft windows_10_22h2
11 Microsoft windows_server_2022
12 Microsoft windows_11_21h2
13 Microsoft windows_11_22h2
14 Microsoft windows_10_1507
15 Microsoft windows_server_2012_r2
16 Microsoft windows_server_2008_r2
17 Microsoft windows_server_2008_sp2
: Total Affected Vendor : 1 | Products : 17
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-2023-21817.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21817 Patch Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21817 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).

Profile Photo
fazilbaig1/oscp

oscp notes

Updated: 22 hours, 42 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 9, 2024, 6:26 p.m. This repo has been linked 66 different CVEs too.
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
2 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: 2 months 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
exfilt/CheatSheet

OSCP and stuffs

Updated: 3 months, 4 weeks 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: 5 months 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
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: 9 months, 2 weeks ago
1 stars 1 fork 1 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, 4 weeks 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: 11 months, 1 week 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: 11 months, 2 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: 1 month, 1 week ago
10 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
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
0xsyr0/OSCP

OSCP Cheat Sheet

oscp oscp-guide cheat-sheet cheatsheet offensive offensive-security offsec penetration-testing pentesting security oscp-plus

Python Shell C PHP PowerShell ASP.NET

Updated: 1 week, 5 days ago
2821 stars 571 fork 571 watcher
Born at : Oct. 22, 2021, 9:36 a.m. This repo has been linked 66 different CVEs too.
Profile Photo
ycdxsb/WindowsPrivilegeEscalation

Collection of Windows Privilege Escalation (Analyse/PoC/Exploit)

Updated: 1 week, 6 days ago
328 stars 62 fork 62 watcher
Born at : April 22, 2021, 3:29 a.m. This repo has been linked 276 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-2023-21817 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-21817 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://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21817
  • CVE Modified by [email protected]

    May. 29, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-287
  • CVE Modified by [email protected]

    May. 28, 2024

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

    May. 14, 2024

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

    Feb. 23, 2023

    Action Type Old Value New Value
    Changed Reference Type https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21817 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21817 Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_10:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.10240.19747 *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.5717 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.4010 *cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19042.2604 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19044.2604 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19045.2604 *cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22000.1574 *cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22621.1265 *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_2019:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*
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-2023-21817 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-2023-21817 weaknesses.

Exploit Prediction

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

0.06 }} 0.02%

score

0.26999

percentile

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