Description
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly filter does not properly filter packet fragments even when the "fragment" keyword is used in an ACL, which allows remote attackers to bypass the intended access controls.
References
- M-018 third-party-advisory government-resource
- 20011114 Multiple Vulnerabilities in Access Control List Implementation for Cisco 12000 Series Internet Router vendor-advisory
- 3538 vdb-entry
- 1989 vdb-entry
- cisco-acl-fragment-bypass(7555) vdb-entry