CVE-2020-9307
Last modified
CVE-2020-9307 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
Description
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).
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Belden | Hirschmann Hios | >= 07.0.04, < 07.1.00 |
| Belden | Hirschmann Hios | >= 08.0.00, < 08.3.00 |
References
- https://www.belden.com/securityVendor Advisory
- https://www.belden.com/securityVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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