CVE Vulnerability

CVE-2020-5656

Improper access control vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products or execute a malicious program via a specially crafted packet.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf Vendor Advisory
https://jvn.jp/vu/JVNVU92513419/index.html Third Party Advisory
https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf Vendor Advisory
Configurations

Configuration 1
Information

Published : 2020-11-02 09:15

Updated : 2020-11-10 02:29

NVD link : CVE-2020-5656

Mitre link : CVE-2020-5656

Products Affected
No products.
CWE
NVD-CWE-Other