Ip Routing Security Concerns and Countermeasures
IP Routing security concerns and countermeasures
Patrick Kilensel
Information Security Analyst at FORUS
IP Routing security concerns and countermeasures
Table of Contents
Introduction ...................................................................................................... 4 1.1 Concerns around the securit y of the Internet .......................................... 4 1.2. Short discussion about IP Routing ................................................................ 5 1.2 Research activities to improve IP routing security ......................................... 7 2. Short list of IP routing attack vectors .............................................................. 9 2.1. Malicious Route Injection .............................................................................. 9 2.2. Unallocated Route Injection .......................................................................... 9 2.3. TCP Resets ................................................................................................. 10 2.4. Resource Exhaustion .................................................................................. 10 3. Measures to further secure IP routing ........................................................... 11 3.1. Protecting Router Configurations ................................................................ 11 3.2. Generalized TTL Security Mechanism (GTSM) ........................................... 12 3.3. Filtering ....................................................................................................... 12 3.4. Access Control Lists (ACLs)........................................................................ 12 3.5. Digital Signatures ........................................................................................ 13 4. Conclusion ....................................................................................................... 13 5. References
Patrick Kilensel
Information Security Analyst at FORUS
IP Routing security concerns and countermeasures
Table of Contents
Introduction ...................................................................................................... 4 1.1 Concerns around the securit y of the Internet .......................................... 4 1.2. Short discussion about IP Routing ................................................................ 5 1.2 Research activities to improve IP routing security ......................................... 7 2. Short list of IP routing attack vectors .............................................................. 9 2.1. Malicious Route Injection .............................................................................. 9 2.2. Unallocated Route Injection .......................................................................... 9 2.3. TCP Resets ................................................................................................. 10 2.4. Resource Exhaustion .................................................................................. 10 3. Measures to further secure IP routing ........................................................... 11 3.1. Protecting Router Configurations ................................................................ 11 3.2. Generalized TTL Security Mechanism (GTSM) ........................................... 12 3.3. Filtering ....................................................................................................... 12 3.4. Access Control Lists (ACLs)........................................................................ 12 3.5. Digital Signatures ........................................................................................ 13 4. Conclusion ....................................................................................................... 13 5. References