CVE-2021-37740 - Vulnerability Details - OpenCVE

A denial of service vulnerability exists in MDT's firmware for the KNXnet/IP Secure router SCN-IP100.03 and KNX IP interface SCN-IP000.03 before v3.0.4, that allows a remote attacker to turn the device unresponsive to all requests on the KNXnet/IP Secure layer, until the device is rebooted, via a SESSION_REQUEST frame with a modified total length field.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.1997.

Key SSVC decision points have not yet been added.

Vendors	Products
Mdt Subscribe	Scn-ip000.03 Subscribe Scn-ip000.03 Firmware Subscribe Scn-ip100.03 Subscribe Scn-ip100.03 Firmware Subscribe

Configuration 1 [-]

AND

cpe:2.3:o:mdt:scn-ip000.03_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:mdt:scn-ip000.03:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:mdt:scn-ip100.03_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:mdt:scn-ip100.03:-:*:*:*:*:*:*:*

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/robertguetzkow/CVE-2021-37740
https://www.mdt.de/EN_IP_Interface_Router.html
https://www.mdt.de/download/MDT_CL_SCN_IP_03_IP_Interface_Router.pdf

History

No history.

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-04-20T19:31:19

Updated: 2024-08-04T01:30:07.493Z

Reserved: 2021-07-30T00:00:00

Link: CVE-2021-37740

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-04-20T20:15:07.993

Modified: 2024-11-21T06:15:50.803

Link: CVE-2021-37740

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

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