Cisco IOS 15.2(04)M6 and 15.4(03)S lets physical-interface ACLs supersede tunnel-interface ACLs, which allows remote attackers to bypass intended network-traffic restrictions in opportunistic circumstances by using a tunnel, aka Bug ID CSCur01042.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Link | Tags |
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http://www.securitytracker.com/id/1034141 | vdb entry |
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151112-ios2 | vendor advisory |