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Rewterz Threat Advisory – ICS: Mitsubishi Electric GOT and Tension Controller

Severity

High

Analysis Summary

CVE-2021-20602

An attacker could send specially crafted packets cause to cause several different denial-of-service conditions due to the improper handling of exceptional conditions.

CVE-2021-20603 ; CVE-2021-20605 ; CVE-2021-20604

An attacker could send specially crafted packets cause to cause several different denial-of-service conditions in the TCP-IP protocol stack of GOT and Tension Controller.

Impact

  • Code Execution
  • Denial of Service

Affected Vendors

  • Mitsubishi Electric

Affected Products

  • GT2107-WTBD: All versions
  • GT2107-WTSD: All versions
  • GT2104-RTBD: All versions
  • GT2104-PMBD: All versions
  • GT2103-PMBD: All versions
  • GS2110-WTBD: All versions
  • GS2107-WTBD: All versions
  • GS2110-WTBD-N: All versions
  • GS2107-WTBD-N: All versions

Remediation

Refer to US-CERT Advisory for patch, upgrade, or suggested workaround information.

https://us-cert.cisa.gov/ics/advisories/icsa-21-278-01