#VU28933 Resource exhaustion in MELSEC iQ-R series - CVE-2020-13238

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Main Vulnerability Database Vulnerabilities #VU28933

#VU28933 Resource exhaustion in MELSEC iQ-R series - CVE-2020-13238

Published: June 10, 2020


Vulnerability identifier: #VU28933
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-13238
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
MELSEC iQ-R series
Software vendor:
Mitsubishi Electric

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can send specially crafted packets, trigger resource exhaustion and perform a denial of service (DoS) attack.

This vulnerability affects the following MELSEC iQ-R series modules: 

  • R04/08/16/32/120CPU, R04/08/16/32/120ENCPU: Firmware Versions 39 or earlier
  • R00/01/02CPU: Firmware Versions 7 or earlier
  • R08/16/32/120SFCPU: Firmware Versions 20 or earlier
  • R08/16/32/120PCPU: All versions
  • R08/16/32/120PSFCPU: All versions
  • RJ71EN71: All versions


Remediation

Install updates from vendor's website.

External links