Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Catos | Cisco | 4.5(11) (including) | 4.5(11) (including) |
| Catos | Cisco | 4.5.10 (including) | 4.5.10 (including) |
| Catos | Cisco | 5.5(4b) (including) | 5.5(4b) (including) |
| Catos | Cisco | 5.5(6) (including) | 5.5(6) (including) |
| Catos | Cisco | 6.1(1c) (including) | 6.1(1c) (including) |
| Catos | Cisco | 6.1(2) (including) | 6.1(2) (including) |
| Catos | Cisco | 6.1.2 (including) | 6.1.2 (including) |
References
- http://www.ciac.org/ciac/bulletins/l-072.shtml
- http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml
- http://www.securityfocus.com/bid/2604
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6379
- http://www.ciac.org/ciac/bulletins/l-072.shtml
- http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml
- http://www.securityfocus.com/bid/2604
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6379