Schneider Electric Modicon M340 CPU Modbus memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Schneider Electric Modicon M340 CPU, Modicon MC80 and Modicon Momentum Unity M1E Processor. Affected is an unknown function of the component Modbus Handler. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2024-8937. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Schneider Electric Modicon M340 CPU, Modicon MC80 and Modicon Momentum Unity M1E Processor (version now known). This affects some unknown processing of the component Modbus Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists that could cause a potential arbitrary code execution after a successful Man-In-The Middle attack followed by sending a crafted Modbus function call to tamper with memory area involved in the authentication process.

It is possible to read the advisory at download.schneider-electric.com. This vulnerability is uniquely identified as CVE-2024-8937 since 09/17/2024. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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Vendor

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (schneider): 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/17/2024 🔍
11/13/2024 +57 days 🔍
11/13/2024 +0 days 🔍
11/13/2024 +0 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: SEVD-2024-317-03
Status: Confirmed

CVE: CVE-2024-8937 (🔍)
GCVE (CVE): GCVE-0-2024-8937
GCVE (VulDB): GCVE-100-284283

Entryinfo

Created: 11/13/2024 08:09
Changes: 11/13/2024 08:09 (76)
Complete: 🔍
Cache ID: 216::103

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