Ovarro TBox TG2 Modbus Frame denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Ovarro TBoxLT2, TBox MS-CPU32, TBox MS-CPU32-S2, TBox RM2 and TBox TG2. This impacts an unknown function of the component Modbus Frame Handler. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2021-22642. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Ovarro TBoxLT2, TBox MS-CPU32, TBox MS-CPU32-S2, TBox RM2 and TBox TG2. It has been rated as critical. Affected by this issue is an unknown code block of the component Modbus Frame Handler. 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. CVE summarizes:

An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.

The weakness was published 07/29/2022 as icsa-21-054-04. The advisory is shared for download at cisa.gov. This vulnerability is handled as CVE-2021-22642 since 01/05/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (ICS-CERT): 🔍

CVSSv2info

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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/05/2021 🔍
07/29/2022 +569 days 🔍
07/29/2022 +0 days 🔍
04/17/2025 +993 days 🔍

Sourcesinfo

Advisory: icsa-21-054-04
Status: Not defined

CVE: CVE-2021-22642 (🔍)
GCVE (CVE): GCVE-0-2021-22642
GCVE (VulDB): GCVE-100-205280

Entryinfo

Created: 07/29/2022 07:39
Updated: 04/17/2025 21:08
Changes: 07/29/2022 07:39 (48), 04/17/2025 21:08 (25)
Complete: 🔍
Cache ID: 216:29C:103

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