Cisco 1760 Modular Access Router ACL bypass
| cisco-acl-bypass (12006) |  Medium Risk |
Description:
Cisco 1760 Modular Access Router fails to properly block unwanted traffic to the router. If the crypto engine accelerator, PPPoE dialer or Ip route-cache security feature is enabled, the Access Control List (ACL) is improperly parsed, which could allow unwanted traffic access to and from the protected network. This allows a remote attacker to send unwanted packets into the protected network, and possibly attack systems that are supposed to be protected by the ACL on the router.
Platforms Affected:
- Cisco, 1760 Modular Access Router
Remedy:
No remedy available as of November 29, 2008.
Consequences:
Bypass Security
References:
- BugTraq Mailing List, Thu May 15 2003 - 11:56:36 CDT, Re: Cisco ACL bug when using VPN crypto engine accelerator, PPPoE dialer or ip route-cache at http://archives.neohapsis.com/archives/bugtraq/2003-05/0175.html.
- BugTraq Mailing List, Wed May 14 2003 - 09:52:44 CDT, Cisco ACL bug when using VPN crypto engine accelerator, PPPoE dialer or ip route-cache at http://archives.neohapsis.com/archives/bugtraq/2003-05/0161.html.
- BID-7605: Cisco IOS Crypto Engine Accelerator Access Control List Circumvention Vulnerability
Reported:
May 14, 2003
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.
For corrections or additions please email xforce@iss.net