Advisories

Hirschmann HiOS EtherNet/IP Stack Denial of Service

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severity
high
date
Affecting
  • Hirschmann HiOS <= 08.1.00 and 07.1.01

CWE
  • CWE-20 Improper Input Validation
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
Hirschmann HiOS devices versions prior to 08.1.00 and 07.1.01 contain a denial of service vulnerability in the EtherNet/IP stack where improper handling of packet length fields allows remote attackers to crash or hang the device. Attackers can send specially crafted UDP EtherNet/IP packets with a length value larger than the actual packet size to render the device inoperable.

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