VDB-198269 · CVE-2021-37740 · GCVE-0-2021-37740

MDT SCN-IP100.03/SCN-IP000.03 prior 3.0.4 KNXnet IP Secure Layer denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in MDT SCN-IP100.03 and SCN-IP000.03. Impacted is an unknown function of the component KNXnet IP Secure Layer. The manipulation leads to denial of service. This vulnerability is traded as CVE-2021-37740. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in MDT SCN-IP100.03 and SCN-IP000.03. It has been rated as problematic. This issue affects an unknown functionality of the component KNXnet IP Secure Layer. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was shared 04/21/2022. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-37740 since 07/30/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 3.0.4 eliminates this vulnerability.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SCN-IP100.03/SCN-IP000.03 3.0.4

Timelineinfo

07/30/2021 🔍
04/21/2022 +265 days 🔍
04/21/2022 +0 days 🔍
04/27/2022 +6 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-37740 (🔍)
GCVE (CVE): GCVE-0-2021-37740
GCVE (VulDB): GCVE-100-198269

Entryinfo

Created: 04/21/2022 08:22
Updated: 04/27/2022 19:11
Changes: 04/21/2022 08:22 (39), 04/27/2022 19:03 (1), 04/27/2022 19:11 (1)
Complete: 🔍
Cache ID: 216::103