CVE-2020-9307
CVSS V2 Medium 6.1
CVSS V3 Medium 6.5
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).
Overview
- CVE ID
- CVE-2020-9307
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-02-11T21:15:12
- Last Modified Date
- 2021-02-23T18:53:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:belden:hirschmann_hios:*:*:*:*:*:*:*:* | 1 | OR | 07.0.04 | 07.1.00 |
| cpe:2.3:o:belden:hirschmann_hios:*:*:*:*:*:*:*:* | 1 | OR | 08.0.00 | 08.3.00 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 6.1
- Severity
- MEDIUM
- Exploitability Score
- 6.5
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/12276-source/options/view | Vendor Advisory |
| https://www.belden.com/security | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-9307 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9307 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:22:01 | Added to TrackCVE | |||
| 2022-12-05 22:00:26 | 2021-02-11T21:15Z | 2021-02-11T21:15:12 | CVE Published Date | updated |
| 2022-12-05 22:00:26 | 2021-02-23T18:53:37 | CVE Modified Date | updated | |
| 2022-12-05 22:00:26 | Analyzed | Vulnerability Status | updated |