CVE-2021-40334

Summary

Missing Handler vulnerability in the proprietary management protocol (port TCP 5558) of Hitachi Energy FOX61x, XCM20 allows an attacker that exploits the vulnerability by activating SSH on port TCP 5558 to cause disruption to the NMS and NE communication. This issue affects: Hitachi Energy FOX61x versions prior to R15A. Hitachi Energy XCM20 versions prior to R15A.

Affected Software

VendorProductVersion RangeStatus
Hitachi EnergyFOX61xR15A < R15Aaffected
Hitachi EnergyXCM20R15A < R15Aaffected

Weaknesses

  • CWE-431: CWE-431 Missing Handler

Workarounds

Recommended security practices and firewall configurations help protecting systems from attacks that originate from outside the network. Such practices include that network management systems and FOX61x or XMC20 networks are typically physically protected from direct access by unauthorized personnel and have no direct connections to the Internet, as well as are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system.

ADP Enrichment

CVE Program Container

Additional References

References