CVE-2020-3231
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.
Risk Information
Base Score
4.7
MODERATE
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
EPSS Score
Exploitation Probability
0.07
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco IOS Software for Catalyst 2960-L Series Switches and Catalyst CDB-8P Switches 802.1X Authentication Bypass Vulnerability For Cisco IOS | NCM |
| Incorrect Authorization Vulnerability (CVE-2020-3231) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1706090 | Security Update for Cisco IOS Amsterdam-17.2.1r |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234