Microsoft Windows Server 2012 up to Server 2022 23H2 Kerberos numeric truncation error

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.9$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Microsoft Windows Server 2012 up to Server 2022 23H2 and classified as very critical. This vulnerability affects unknown code of the component Kerberos. Performing a manipulation results in numeric truncation error. This vulnerability was named CVE-2024-43639. The attack may be initiated remotely. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Microsoft Windows Server 2012 up to Server 2022 23H2. This affects an unknown part of the component Kerberos. The manipulation with an unknown input leads to a numeric truncation error vulnerability. CWE is classifying the issue as CWE-197. Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 11/12/2024 as confirmed security update guide (Website). The advisory is shared at msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2024-43639. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/19/2024).

The vulnerability scanner Nessus provides a plugin with the ID 210866 (KB5046616: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (November 2024)), which helps to determine the existence of the flaw in a target environment.

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 vulnerability database at Tenable (210866). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.9

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 9.8
Vendor Vector (Microsoft): 🔍

CNA Base Score: 9.8
CNA Vector (Microsoft): 🔍

CVSSv2info

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

Exploitinginfo

Class: Numeric truncation error
CWE: CWE-197 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 210866
Nessus Name: KB5046616: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (November 2024)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

11/12/2024 🔍
11/12/2024 +0 days 🔍
11/12/2024 +0 days 🔍
11/19/2024 +6 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: msrc.microsoft.com
Status: Confirmed

CVE: CVE-2024-43639 (🔍)
GCVE (CVE): GCVE-0-2024-43639
GCVE (VulDB): GCVE-100-284133

Entryinfo

Created: 11/12/2024 19:30
Updated: 11/19/2024 04:50
Changes: 11/12/2024 19:30 (35), 11/12/2024 19:34 (34), 11/13/2024 02:04 (2), 11/19/2024 04:50 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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