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.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios | Cisco | 15.2(5)e2 (including) | 15.2(5)e2 (including) |
| Ios | Cisco | 15.2(5)ex (including) | 15.2(5)ex (including) |
| Ios | Cisco | 15.2(5a)e (including) | 15.2(5a)e (including) |
| Ios | Cisco | 15.2(5b)e (including) | 15.2(5b)e (including) |
| Ios | Cisco | 15.2(5c)e (including) | 15.2(5c)e (including) |
| Ios | Cisco | 15.2(6)e (including) | 15.2(6)e (including) |
| Ios | Cisco | 15.2(6)e0c (including) | 15.2(6)e0c (including) |
| Ios | Cisco | 15.2(6)e1 (including) | 15.2(6)e1 (including) |
| Ios | Cisco | 15.2(6)e1a (including) | 15.2(6)e1a (including) |
| Ios | Cisco | 15.2(6)e1s (including) | 15.2(6)e1s (including) |
| Ios | Cisco | 15.2(6)e2 (including) | 15.2(6)e2 (including) |
| Ios | Cisco | 15.2(6)e2b (including) | 15.2(6)e2b (including) |
| Ios | Cisco | 15.2(6)e3 (including) | 15.2(6)e3 (including) |
| Ios | Cisco | 15.2(6)e4 (including) | 15.2(6)e4 (including) |
| Ios | Cisco | 15.2(7)e (including) | 15.2(7)e (including) |
| Ios | Cisco | 15.2(7)e0a (including) | 15.2(7)e0a (including) |
| Ios | Cisco | 15.2(7)e0b (including) | 15.2(7)e0b (including) |
| Ios | Cisco | 15.2(7)e0s (including) | 15.2(7)e0s (including) |
| Ios | Cisco | 15.2(7a)e0b (including) | 15.2(7a)e0b (including) |
| Ios | Cisco | 15.2(7b)e0b (including) | 15.2(7b)e0b (including) |
| Ios | Cisco | 15.3(3)jaa1 (including) | 15.3(3)jaa1 (including) |
| Ios | Cisco | 15.3(3)jpj (including) | 15.3(3)jpj (including) |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: