CVE-2020-3426
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
A vulnerability in the implementation of the Low Power, Wide Area (LPWA) subsystem of Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an unauthenticated, remote attacker to gain unauthorized read access to sensitive data or cause a denial of service (DoS) condition. The vulnerability is due to a lack of input and validation checking mechanisms for virtual-LPWA (VLPWA) protocol modem messages. An attacker could exploit this vulnerability by supplying crafted packets to an affected device. A successful exploit could allow the attacker to gain unauthorized read access to sensitive data or cause the VLPWA interface of the affected device to shut down, resulting in DoS condition.
Overview
- CVE ID
- CVE-2020-3426
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-24T18:15:19
- Last Modified Date
- 2021-08-06T19:03:54
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:h:cisco:1120_connected_grid_router:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:1240_connected_grid_router:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:807_industrial_integrated_services_router:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:809_industrial_integrated_services_router:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:829_industrial_integrated_services_router:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lpwa-access-cXsD7PRA | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3426 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3426 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:58:03 | Added to TrackCVE | |||
| 2022-12-04 23:17:48 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-04 23:17:48 | 2020-09-24T18:15Z | 2020-09-24T18:15:19 | CVE Published Date | updated |
| 2022-12-04 23:17:48 | 2021-08-06T19:03:54 | CVE Modified Date | updated | |
| 2022-12-04 23:17:48 | Analyzed | Vulnerability Status | updated |