Denial of Service Vulnerability in Hirschmann OS2 and RSP Devices
CVE-2020-9307

6.5MEDIUM

Key Information:

Vendor

Belden

Status
Hirschmann Hios
Vendor
CVE Published:
11 February 2021

What is CVE-2020-9307?

The vulnerability in Hirschmann OS2, RSP, and RSPE devices prior to HiOS 08.3.00 can be exploited by an unauthenticated adjacent attacker to create an infinite loop on HSR ring ports. This vulnerability compromises the redundancy of the HSR ring, leading to a potential breakdown in communication between configured devices. If exploited on multiple devices, it may disrupt the entire network topology significantly.

References

https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb661...
x_refsource_CONFIRM
https://www.belden.com/security
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.