Modbus Tools Modbus Slave up to 7.5.1 mbs File mbslave.exe buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.10

Summaryinfo

A vulnerability was found in Modbus Tools Modbus Slave up to 7.5.1 and classified as critical. Affected by this issue is some unknown functionality of the file mbslave.exe of the component mbs File Handler. The manipulation leads to buffer overflow. This vulnerability is handled as CVE-2022-4856. The attack may be launched remotely. Furthermore, there is an exploit available. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability has been found in Modbus Tools Modbus Slave up to 7.5.1 and classified as critical. Affected by this vulnerability is an unknown function of the file mbslave.exe of the component mbs File Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 12/30/2022. The advisory is shared at github.com. This vulnerability is known as CVE-2022-4856. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

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

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

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 6.3
CNA Vector (VulDB): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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

12/30/2022 🔍
12/30/2022 +0 days 🔍
12/30/2022 +0 days 🔍
01/26/2023 +27 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2022-4856 (🔍)
GCVE (CVE): GCVE-0-2022-4856
GCVE (VulDB): GCVE-100-217021
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/30/2022 10:07 AM
Updated: 01/26/2023 04:24 AM
Changes: 12/30/2022 10:07 AM (41), 01/26/2023 04:11 AM (2), 01/26/2023 04:24 AM (21)
Complete: 🔍
Submitter: webray.com.cn
Cache ID: 18:2CF:40

Submitinfo

Accepted

  • Submit #61263: Modbus Slave (version 7.5.1 and earlier) mbs file has a buffer overflow vulnerability (by webray.com.cn)

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