Known Exploited Vulnerability
8.8
HIGH
CVE-2023-21674
Microsoft Windows Advanced Local Procedure Call (A - [Actively Exploited]
Description

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

INFO

Published Date :

Jan. 10, 2023, 10:15 p.m.

Last Modified :

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

Remotely Exploitable :

No

Impact Score :

6.0

Exploitability Score :

2.0
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 Advanced Local Procedure Call (ALPC) contains an unspecified vulnerability that allows for privilege escalation.

Required Action :

Apply updates per vendor instructions.

Notes :

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21674; https://nvd.nist.gov/vuln/detail/CVE-2023-21674

Public PoC/Exploit Available at Github

CVE-2023-21674 has a 4 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-2023-21674 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_8.1
2 Microsoft windows_rt_8.1
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
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-2023-21674.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 Patch Vendor Advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 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

C++

Updated: 4 weeks, 1 day ago
27 stars 5 fork 5 watcher
Born at : March 7, 2024, 5:43 a.m. This repo has been linked 1 different CVEs too.

A basic Python program to check Cybersecurity & Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) Catalog

Python

Updated: 2 months ago
17 stars 3 fork 3 watcher
Born at : Feb. 9, 2023, 5:26 p.m. This repo has been linked 14 different CVEs too.

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 2 weeks ago
548 stars 35 fork 35 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1228 different CVEs too.

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

Updated: 2 weeks 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-2023-21674 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-21674 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-2023-21674
  • Modified Analysis by [email protected]

    Jun. 28, 2024

    Action Type Old Value New Value
    Changed Reference Type https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 Patch, Vendor Advisory
    Removed CWE NIST NVD-CWE-noinfo
    Added CWE NIST CWE-416
    Changed CPE Configuration OR *cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:x64:* *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:-:*:*:*:*:*:*:* OR *cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.10240.19685 *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.5648 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.3887 *cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19042.2486 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19044.2486 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19045.2486 *cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22000.1455 *cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22621.1105 *cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.5648 *cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.3887 *cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.20348.1487
  • CVE Modified by [email protected]

    May. 29, 2024

    Action Type Old Value New Value
    Added CWE Microsoft Corporation CWE-416
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Apr. 27, 2023

    Action Type Old Value New Value
    Changed Description Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability. Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability
    Removed Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21674 [Patch, Vendor Advisory]
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21674 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 18, 2023

    Action Type Old Value New Value
    Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21674 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21674 Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_20h2:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_21h2:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_10_22h2:-:*:*:*:*:*:x86:* *cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_11_21h2:-:*:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:arm64:* *cpe:2.3:o:microsoft:windows_11_22h2:-:*:*:*:*:*:x64:* *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-2023-21674 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-2023-21674 weaknesses.

Exploit Prediction

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

0.21 }} 0.11%

score

0.58404

percentile

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