CVE-2020-3231
CVSS V2 Low 2.9
CVSS V3 Medium 4.7
Description
A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication.
Overview
- CVE ID
- CVE-2020-3231
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-06-03T18:15:21
- Last Modified Date
- 2020-06-08T18:25:55
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:cisco:ios:15.2\(5\)e2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(5\)ex:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(5a\)e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(5b\)e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(5c\)e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e0c:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e1a:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e1s:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e2:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e2b:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e3:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(6\)e4:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(7\)e:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(7\)e0a:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(7\)e0b:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(7\)e0s:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(7a\)e0b:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.2\(7b\)e0b:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.3\(3\)jaa1:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cisco:ios:15.3\(3\)jpj:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.9
- Severity
- LOW
- Exploitability Score
- 5.5
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 4.7
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c2960L-DpWA9Re4 | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3231 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3231 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:28:41 | Added to TrackCVE | |||
| 2022-12-04 17:18:28 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-04 17:18:28 | 2020-06-03T18:15Z | 2020-06-03T18:15:21 | CVE Published Date | updated |
| 2022-12-04 17:18:28 | 2020-06-08T18:25:55 | CVE Modified Date | updated | |
| 2022-12-04 17:18:28 | Analyzed | Vulnerability Status | updated |