Infinite loop in Belden Inc. products - CVE-2020-9307
Published: March 17, 2021
Vulnerability identifier: #VU51524
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-9307
CWE-ID: CWE-835
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the HSR implementation. A remote attacker on the local network can consume all available system resources and cause denial of service conditions.
Affected software
Hirschmann OS2
Hirschmann RSP
Hirschmann RSPE
HiOS
AFS665-SR
AFS665
AFS660-SR
AFS660
Hirschmann RSP
Hirschmann RSPE
HiOS
AFS665-SR
AFS665
AFS660-SR
AFS660
How to mitigate CVE-2020-9307
Install updates from vendor's website.
HiOS - addressed in versions 07.2.01, 08.4.00
AFS665-SR - update to 7.1.03
AFS665 - update to 7.1.03
AFS660-SR - update to 7.1.03
AFS660 - update to 7.1.03
AFS665-SR - update to 7.1.03
AFS665 - update to 7.1.03
AFS660-SR - update to 7.1.03
AFS660 - update to 7.1.03