Vulnerability identifier: #VU48071
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-384
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
MELSEC iQ-R EtherNet/IP Network Interface Module
Hardware solutions /
Firmware
MELSEC iQ-R PROFINET IO Controller Module
Hardware solutions /
Firmware
MELSEC iQ-R High Speed Data Logger Module
Hardware solutions /
Firmware
MELSEC iQ-R MES Interface Module
Hardware solutions /
Firmware
MELSEC iQ-R OPC UA Server Module
Hardware solutions /
Firmware
Vendor: Mitsubishi Electric
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the session invalidation issue. A remote attacker can send a specially crafted packet and cause a denial of service condition on the target system.
This vulnerability affects the following modules of MELSEC iQ-R Series:
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MELSEC iQ-R EtherNet/IP Network Interface Module: 02
MELSEC iQ-R PROFINET IO Controller Module: 01
MELSEC iQ-R High Speed Data Logger Module: 08
MELSEC iQ-R MES Interface Module: 04
MELSEC iQ-R OPC UA Server Module: 04
External links
http://ics-cert.us-cert.gov/advisories/icsa-20-303-02
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.