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Category:   Device (Router/Bridge/Hub)  >   Cisco Catalyst Switch Vendors:   Cisco
Cisco Catalyst 4000 Series Switch Dynamic ACL Bug Lets Remote Users Bypass Port Access Controls on the Target System
SecurityTracker Alert ID:  1039284
SecurityTracker URL:
CVE Reference:   CVE-2017-12213   (Links to External Site)
Date:  Sep 7 2017
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco Catalyst 4000 Series Switch. A remote user can bypass access controls on the target system.

A remote user on the local network can trigger an error condition in the reassignment of the auth-default-ACL dynamic access control list (ACL) to a switch port to cause the port to fail in the open condition. As a result, the remote user can pass traffic to the default VLAN for the affected switch port.

The vendor has assigned bug ID CSCvc72751 to this vulnerability.

Impact:   A remote user on the local network can bypass port access controls on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   None.

 Source Message Contents



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