Multiple vulnerabilities in lMitsubishi Electric FA engineering software products

Published: 2021-02-22

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-20587 CVE-2021-20588
CWE-ID	CWE-122 CWE-130
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Setting/monitoring tools for the C Controller module Other software / Other software solutions Data Transfer Other software / Other software solutions EZSocket Other software / Other software solutions MH11 SettingTool Version2 Other software / Other software solutions CPU Module Logging Configuration Tool Client/Desktop applications / Software for system administration CW Configurator Client/Desktop applications / Software for system administration Mitsubishi Electric FR Configurator2 Client/Desktop applications / Software for system administration FR Configurator Client/Desktop applications / Software for system administration FR Configurator SW3 Client/Desktop applications / Software for system administration GT Designer3 Client/Desktop applications / Software for system administration GX Configurator-DP Client/Desktop applications / Software for system administration GX Configurator-QP Client/Desktop applications / Software for system administration GX Developer Client/Desktop applications / Software for system administration GX LogViewer Client/Desktop applications / Software for system administration GX RemoteService-I Client/Desktop applications / Software for system administration GX Works2 Client/Desktop applications / Software for system administration GX Works3 Client/Desktop applications / Software for system administration M_CommDTM-HART Client/Desktop applications / Software for system administration M_CommDTM-IO-Link Client/Desktop applications / Software for system administration MELFA-Works Client/Desktop applications / Software for system administration MELSOFT EM Software Development Kit (EM Configurator) Client/Desktop applications / Software for system administration MELSOFT Navigator Client/Desktop applications / Software for system administration MI Configurator Client/Desktop applications / Software for system administration MT Works2 Client/Desktop applications / Software for system administration RT ToolBox2 Client/Desktop applications / Software for system administration RT ToolBox3 Client/Desktop applications / Software for system administration SLMP Data Collector Client/Desktop applications / Software for system administration GT SoftGOT1000 Version3 Server applications / SCADA systems GT SoftGOT2000 Version1 Server applications / SCADA systems MELSEC WinCPU Setting Utility Operating systems & Components / Operating system package or component MX Component Universal components / Libraries / Libraries used by multiple products Network Interface Board CC IE Control utility Server applications / Other server solutions Network Interface Board CC IE Field Utility Server applications / Other server solutions Network Interface Board CC-Link Ver.2 Utility Server applications / Other server solutions Network Interface Board MNETH utility Server applications / Other server solutions PX Developer Client/Desktop applications / Other client software
Vendor	Mitsubishi Electric

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU50839

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-20587

CWE-ID:

Exploit availability:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error. A remote attacker can spoof MELSEC, GOT or FREQROL and return crafted reply packets, trigger heap-based buffer overflow and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Setting/monitoring tools for the C Controller module: All versions

CPU Module Logging Configuration Tool: All versions

CW Configurator: All versions

Data Transfer: All versions

EZSocket: All versions

Mitsubishi Electric FR Configurator2: All versions

FR Configurator: All versions

FR Configurator SW3: All versions

GT Designer3: All versions

GT SoftGOT1000 Version3: All versions

GT SoftGOT2000 Version1: All versions

GX Configurator-DP: 7.14Q

GX Configurator-QP: All versions

GX Developer: All versions

GX LogViewer: All versions

GX RemoteService-I: All versions

GX Works2: 1.597X

GX Works3: 1.070Y

M_CommDTM-HART: All versions

M_CommDTM-IO-Link: All versions

MELFA-Works: All versions

MELSEC WinCPU Setting Utility: All versions

MELSOFT EM Software Development Kit (EM Configurator): All versions

MELSOFT Navigator: All versions

MH11 SettingTool Version2: All versions

MI Configurator: All versions

MT Works2: All versions

MX Component: All versions

Network Interface Board CC IE Control utility: All versions

Network Interface Board CC IE Field Utility: All versions

Network Interface Board CC-Link Ver.2 Utility: All versions

Network Interface Board MNETH utility: All versions

PX Developer: All versions

RT ToolBox2: All versions

RT ToolBox3: All versions

SLMP Data Collector: All versions

Fixed software versions

CPE2.3

cpe:2.3:a:mitsubishi_electric:setting_monitoring_tools_for_the_c_controller_module:*:*:*:*:*:*:*:*

External links

http://jvn.jp/vu/JVNVU92330101/index.html
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-021_en.pdf

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Improper Handling of Length Parameter Inconsistency

EUVDB-ID: #VU50840