CVE-2021-20587 Information

Description

Heap-based buffer overflow vulnerability in Mitsubishi Electric FA Engineering Software (CPU Module Logging Configuration Tool versions 1.112R and prior CW Configurator versions 1.011M and prior Data Transfer versions 3.44W and prior EZSocket all versions FR Configurator all versions FR Configurator SW3 all versions FR Configurator2 versions 1.24A and prior GT Designer3 Version1(GOT1000) versions 1.250L and prior GT Designer3 Version1(GOT2000) versions 1.250L and prior GT SoftGOT1000 Version3 versions 3.245F and prior GT SoftGOT2000 Version1 versions 1.250L and prior GX Configurator-DP versions 7.14Q and prior GX Configurator-QP all versions GX Developer versions 8.506C and prior GX Explorer all versions GX IEC Developer all versions GX LogViewer versions 1.115U and prior GX RemoteService-I all versions GX Works2 versions 1.597X and prior GX Works3 versions 1.070Y and prior iQ Monozukuri ANDON (Data Transfer) all versions iQ Monozukuri Process Remote Monitoring (Data Transfer) all versions M_CommDTM-HART all versions M_CommDTM-IO-Link versions 1.03D and prior MELFA-Works versions 4.4 and prior MELSEC WinCPU Setting Utility all versions MELSOFT EM Software Development Kit (EM Configurator) all versions MELSOFT Navigator versions 2.74C and prior MH11 SettingTool Version2 versions 2.004E and prior MI Configurator all versions MT Works2 versions 1.167Z and prior MX Component versions 5.001B and prior Network Interface Board CC IE Control utility versions 1.29F and prior Network Interface Board CC IE Field Utility versions 1.16S and prior Network Interface Board CC-Link Ver.2 Utility versions 1.23Z and prior Network Interface Board MNETH utility versions 34L and prior PX Developer versions 1.53F and prior RT ToolBox2 versions 3.73B and prior RT ToolBox3 versions 1.82L and prior Setting/monitoring tools for the C Controller module (SW3PVC-CCPU) all versions Setting/monitoring tools for the C Controller module (SW4PVC-CCPU) all versions and SLMP Data Collector versions 1.04E and prior) allows a remote unauthenticated attacker to cause a DoS condition of the software products and possibly to execute a malicious program on the personal computer running the software products although it has not been reproduced by spoofing MELSEC GOT or FREQROL and returning crafted reply packets.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-021_en.pdf https://jvn.jp/vu/JVNVU92330101/index.html https://us-cert.cisa.gov/ics/advisories/icsa-21-049-02

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8