CVE-2020-3231
Last modified
CVE-2020-3231 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | 15.2\(5\)e2 |
| Cisco | Ios | 15.2\(5\)ex |
| Cisco | Ios | 15.2\(5a\)e |
| Cisco | Ios | 15.2\(5b\)e |
| Cisco | Ios | 15.2\(5c\)e |
| Cisco | Ios | 15.2\(6\)e |
| Cisco | Ios | 15.2\(6\)e0c |
| Cisco | Ios | 15.2\(6\)e1 |
| Cisco | Ios | 15.2\(6\)e1a |
| Cisco | Ios | 15.2\(6\)e1s |
| Cisco | Ios | 15.2\(6\)e2 |
| Cisco | Ios | 15.2\(6\)e2b |
| Cisco | Ios | 15.2\(6\)e3 |
| Cisco | Ios | 15.2\(6\)e4 |
| Cisco | Ios | 15.2\(7\)e |
| Cisco | Ios | 15.2\(7\)e0a |
| Cisco | Ios | 15.2\(7\)e0b |
| Cisco | Ios | 15.2\(7\)e0s |
| Cisco | Ios | 15.2\(7a\)e0b |
| Cisco | Ios | 15.2\(7b\)e0b |
| Cisco | Ios | 15.3\(3\)jaa1 |
| Cisco | Ios | 15.3\(3\)jpj |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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