CVE-2024-21305

Hypervisor-Protected Code Integrity (HVCI) Security Feature Bypass Vulnerability

Severity Score

4.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Hypervisor-Protected Code Integrity (HVCI) Security Feature Bypass Vulnerability

Vulnerabilidad de omisión de la característica de seguridad de Hypervisor-Protected Code Integrity (HVCI)

This post details the story and technical details of the non-secure Hypervisor-Protected Code Integrity (HVCI) configuration vulnerability disclosed and fixed with the January 9th update on Windows. This vulnerability, CVE-2024-21305, allowed arbitrary kernel-mode code execution, effectively bypassing HVCI within the root partition.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

Multiple

Confidentiality

None

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-08 CVE Reserved
2024-01-09 CVE Published
2024-01-14 First Exploit
2024-12-31 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/tandasat/CVE-2024-21305	2024-01-14

URL	Date	SRC
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21305	2024-06-11

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Windows 10 1809 Search vendor "Microsoft" for product "Windows 10 1809"				< 10.0.17763.5329 Search vendor "Microsoft" for product "Windows 10 1809" and version " < 10.0.17763.5329"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 21h2 Search vendor "Microsoft" for product "Windows 10 21h2"				< 10.0.19044.3930 Search vendor "Microsoft" for product "Windows 10 21h2" and version " < 10.0.19044.3930"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 10 22h2 Search vendor "Microsoft" for product "Windows 10 22h2"				< 10.0.19045.3930 Search vendor "Microsoft" for product "Windows 10 22h2" and version " < 10.0.19045.3930"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 21h2 Search vendor "Microsoft" for product "Windows 11 21h2"				< 10.0.22000.2713 Search vendor "Microsoft" for product "Windows 11 21h2" and version " < 10.0.22000.2713"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 22h2 Search vendor "Microsoft" for product "Windows 11 22h2"				< 10.0.22621.3007 Search vendor "Microsoft" for product "Windows 11 22h2" and version " < 10.0.22621.3007"		-		Affected
Microsoft Search vendor "Microsoft"		Windows 11 23h2 Search vendor "Microsoft" for product "Windows 11 23h2"				< 10.0.22631.3007 Search vendor "Microsoft" for product "Windows 11 23h2" and version " < 10.0.22631.3007"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019"				< 10.0.17763.5329 Search vendor "Microsoft" for product "Windows Server 2019" and version " < 10.0.17763.5329"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2022 Search vendor "Microsoft" for product "Windows Server 2022"				< 10.0.20348.2227 Search vendor "Microsoft" for product "Windows Server 2022" and version " < 10.0.20348.2227"		-		Affected
Microsoft Search vendor "Microsoft"		Windows Server 2022 23h2 Search vendor "Microsoft" for product "Windows Server 2022 23h2"				< 10.0.25398.643 Search vendor "Microsoft" for product "Windows Server 2022 23h2" and version " < 10.0.25398.643"		-		Affected