Microsoft Windows up to Server 2022 23H2 Kernel untrusted pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows up to Server 2022 23H2. It has been classified as critical. The impacted element is an unknown function of the component Kernel. The manipulation leads to an unknown weakness. This vulnerability is documented as CVE-2024-21338. The attack needs to be performed locally. Additionally, an exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows up to Server 2022 23H2 (Operating System). It has been rated as critical. This issue affects an unknown code block of the component Kernel. Using CWE to declare the problem leads to CWE-822. The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. Impacted is confidentiality, integrity, and availability.

The weakness was released 02/13/2024 as confirmed security guidance (Website). The advisory is shared at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2024-21338. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as attacked. We expect the 0-day to have been worth approximately $25k-$100k. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 03/04/2024 with a due date of 03/25/2024:

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

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (51946) and Zero-Day.cz (867). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.8
Vendor Vector (Microsoft): 🔍

CNA Base Score: 7.8
CNA Vector (Microsoft): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Untrusted pointer dereference
CWE: CWE-822
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/08/2023 🔍
02/13/2024 +67 days 🔍
02/13/2024 +0 days 🔍
02/13/2024 +0 days 🔍
11/29/2024 +290 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed

CVE: CVE-2024-21338 (🔍)
GCVE (CVE): GCVE-0-2024-21338
GCVE (VulDB): GCVE-100-253601
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfo

Created: 02/13/2024 19:32
Updated: 11/29/2024 20:43
Changes: 02/13/2024 19:32 (34), 02/13/2024 19:36 (20), 03/04/2024 10:46 (1), 04/30/2024 15:09 (29), 06/05/2024 05:43 (2), 06/10/2024 17:55 (10), 08/06/2024 05:01 (3), 09/09/2024 22:30 (1), 10/10/2024 03:08 (1), 10/16/2024 05:38 (1), 11/29/2024 20:43 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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