Public bug reported: Host local IP addresses shouldn't be in source_ip for incoming packets. No exceptions.
Current implementation of security groups, when user allow a wide range of IP addresses to pass, allow to pass 127.0.0.0/8. Steps to reproduce: 1. Create rule in security groups which allows from 0.0.0.0/0 2. send spoofed traffic with source 127.0.0.1 to instance (hping3 -a 127.0.0.1 target_ip) Expected behavior: no malformed traffic on instance interface. Actual behavior: Traffic with source=127.0.0.1 on instance interface. ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1699495 Title: security groups allows localhost (127.0.0.0/8) to pass Status in neutron: New Bug description: Host local IP addresses shouldn't be in source_ip for incoming packets. No exceptions. Current implementation of security groups, when user allow a wide range of IP addresses to pass, allow to pass 127.0.0.0/8. Steps to reproduce: 1. Create rule in security groups which allows from 0.0.0.0/0 2. send spoofed traffic with source 127.0.0.1 to instance (hping3 -a 127.0.0.1 target_ip) Expected behavior: no malformed traffic on instance interface. Actual behavior: Traffic with source=127.0.0.1 on instance interface. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1699495/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp