CVE-2020-9307

Hirschmann OS2, RSP, and RSPE devices before HiOS 08.3.00 allow a denial of service. An unauthenticated, adjacent attacker can cause an infinite loop on one of the HSR ring ports of the device. This effectively breaks the redundancy of the HSR ring. If the attacker can perform the same attack on a second device, the ring is broken into two parts (thus disrupting communication between devices in the different parts).

CVSS v3 6.5 MEDIUM
CVSS v2.0 6.1 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.1^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 6.5 / Impact : 6.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/12276-source/options/view	Vendor Advisory
https://www.belden.com/security	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:belden:hirschmann_hios::::::::
	cpe:2.3:o:belden:hirschmann_hios::::::::

History

No history.

Information

Published : 2021-02-11 21:15

Updated : 2021-02-23 18:53

NVD link : CVE-2020-9307

Mitre link : CVE-2020-9307

CVE.ORG link : CVE-2020-9307

JSON object : View

Products Affected

belden

hirschmann_hios

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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