CVE-2020-6994
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
A buffer overflow vulnerability was found in some devices of Hirschmann Automation and Control HiOS and HiSecOS. The vulnerability is due to improper parsing of URL arguments. An attacker could exploit this vulnerability by specially crafting HTTP requests to overflow an internal buffer. The following devices using HiOS Version 07.0.02 and lower are affected: RSP, RSPE, RSPS, RSPL, MSP, EES, EES, EESX, GRS, OS, RED. The following devices using HiSecOS Version 03.2.00 and lower are affected: EAGLE20/30.
Overview
- CVE ID
- CVE-2020-6994
- Assigner
- ics-cert@hq.dhs.gov
- Vulnerability Status
- Analyzed
- Published Version
- 2020-04-03T19:15:13
- Last Modified Date
- 2021-06-17T17:22:56
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:belden:hirschmann_hios:*:*:*:*:*:*:*:* | 1 | OR | 07.0.02 | |
| cpe:2.3:h:belden:hirschmann_embedded_ethernet_switch:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_embedded_ethernet_switch_extended:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_greyhound_swtich:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_mice_switch_power:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_octopus:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_prp_redbox:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_rail_switch_power:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_rail_switch_power_enhanced:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_rail_switch_power_lite:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_rail_switch_power_smart:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:belden:hirschmann_hisecos:*:*:*:*:*:*:*:* | 1 | OR | 03.2.00 | |
| cpe:2.3:h:belden:hirschmann_eagle20:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:belden:hirschmann_eagle30:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.us-cert.gov/ics/advisories/icsa-20-091-01 | Mitigation Third Party Advisory US Government Resource |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-6994 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6994 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:10:55 | Added to TrackCVE | |||
| 2022-12-04 13:55:26 | 2020-04-03T19:15Z | 2020-04-03T19:15:13 | CVE Published Date | updated |
| 2022-12-04 13:55:26 | 2021-06-17T17:22:56 | CVE Modified Date | updated | |
| 2022-12-04 13:55:26 | Analyzed | Vulnerability Status | updated |