DELTA: SDN SECURITY EVALUATION FRAMEWORK

What is DELTA?

DELTA is a penetration testing framework that regenerates known attack scenarios for diverse test cases. This framework also provides the capability of discovering unknown security problems in SDN by employing a fuzzing technique.

• Agent-Manager is the control tower. It takes full control over all the agents deployed to the target SDN network.
• Application-Agent is a legitimate SDN application that conducts attack procedures and is controller-dependent. The known malicious functions are implemented as application-agent functions.
• Channel-Agent is deployed between the controller and the OpenFlow-enabled switch. The agent sniffs and modifies the unencrypted control messages. It is controller-independent.
• Host-Agent behaves as if it was a legitimate host participating in the target SDN network. The agent demonstrates an attack in which a host attempts to compromise the control plane.

Prerequisites

In order to build and run DELTA, the following are required:

• An agent manager based on Ubuntu 16.04 LTS 64 bit
  • Ant build system
  • Maven v3.3.9
  • LXC 2.0
  • JDK 1.8
• Target Controller (for application agent)
  • Floodlight: ~1.2
  • ONOS: 1.1, 1.6, 1.9
  • OpenDaylight: ~Oxygen
  • Ryu: 4.16
• Cbench (for channel agent)
• Mininet 2.2 (for host agent)
• (in the case of All-In-One Single Machine) Three lxc containers based on Ubuntu 16.04 LTS 64 bit.
  • Container-1: Target controller + Application agent
  • Container-2: Channel agent
  • Container-3: Host agent

Installing DELTA

DELTA installation depends on maven and ant build system. The mvn command is used to install the agent-manager and the agents. DELTA can support an All-In-One Single Machine environment via containers as well as a real hardware SDN environment.

• STEP 1. Get the source code of DELTA on the agent manager machine

$ git clone https://github.com/OpenNetworkingFoundation/DELTA.git

• STEP 2. Install DELTA dependencies

$ cd <DELTA>/tools/dev/delta-setup/
$ ./delta-setup-devenv-ubuntu

• STEP 3. Install three containers using lxc

$ source ./<DELTA>/tools/dev/delta-setup/bash_profile
$ cd <DELTA>/tools/dev/lxc-setup
$ ./lxc-dev-install

$ sudo vi /etc/default/lxc-net
Uncomment "LXC_DHCP_CONFILE=/etc/lxc/dnsmasq.conf"
$ sudo service lxc-net restart
$ sudo lxc-start -n container-cp -d

$ sudo vi /etc/apparmor.d/abstractions/lxc/container-base
Uncomment "mount options=(rw, make-rprivate) -> **,"
$ sudo apparmor_parser -r /etc/apparmor.d/lxc-containers

$ cd ~
$ ssh-keygen -t rsa
(Press Enter)
$ ssh-copy-id -i ~/.ssh/id_rsa.pub $DELTA_CP
(ID: ubuntu, PW: ubuntu)

$ ssh $DELTA_CP
(DELTA_CP) $ sudo visudo
In the bottom of the file, type the follow:
ubuntu ALL=(ALL) NOPASSWD: ALL
(DELTA_CP) $ exit

$ cd <DELTA>/tools/dev/lxc-setup
$ ./lxc-dev-setup
$ ssh-copy-id -i ~/.ssh/id_rsa.pub $DELTA_CH
$ ssh-copy-id -i ~/.ssh/id_rsa.pub $DELTA_DP

• STEP 4. Install DELTA using maven build

$ cd <DELTA>
$ source ./tools/dev/delta-setup/bash_profile
$ mvn clean install

• The test environment is automatically setup as below:

Configuring your own experiments

• The agent-manager automatically reads a configuration file and sets up the test environment based on the file. [/tools/config/manager_default.cfg] contains the All-In-One Single Machine configuration by default.

CONTROLLER_SSH=[account-id]@[agent-controller ipAddr]
CHANNEL_SSH=[account-id]@[agent-channel ipAddr]
HOST_SSH=[account-id]@[agent-host ipAddr]
TARGET_HOST=10.0.0.2
ONOS_ROOT=/home/vagrant/onos-1.6.0
CBENCH_ROOT=/home/vagrant/oflops/cbench/
TARGET_CONTROLLER=Floodlight
TARGET_VERSION=0.91
OF_PORT=6633
OF_VER=1.3
MITM_NIC=eth1
CONTROLLER_IP=[agent-controller ipAddr]
SWITCH_IP=[agent-host ipAddr],[agent-host ipAddr],[agent-host ipAddr]
DUMMY_CONT_IP=[agent-manager ipAddr]
DUMMY_CONT_PORT=6633
AM_IP=[agent-manager ipAddr]
AM_PORT=3366

Floodlight 1.2

$ cd <DELTA>/tools/dev/app-agent-setup
$ ./floodlight-1.2-scp

ONOS 1.1

$ cd <DELTA>/tools/dev/app-agent-setup/onos
$ ./onos-1.1.0-scp
(on the controller machine) $ ./onos-1.1.0-setup

ONOS 1.6 or 1.9

$ cd <DELTA>/tools/dev/app-agent-setup/onos
$ ./delta-setup-onos <onos-version>
* Supported ONOS version in the script: 1.6, 1.9 

OpenDaylight Oxygen

$ cd <DELTA>/tools/dev/app-agent-setup
$ ./odl-oxygen-scp

Ryu 4.16

$ cd <DELTA>/tools/dev/app-agent-setup/ryu
$ ./delta-setup-ryu

• The app-agent (on the controller container) needs 'agent.cfg' file to connect to the agent-manager.

MANAGER_IP=[agent-manager ipAddr]
MANAGER_PORT=3366

Running DELTA

• STEP 1. Distribute the executable files to Containers

$ cd <DELTA>
$ source ./tools/dev/delta-setup/bash_profile
$ ./tools/dev/delta-setup/delta-agents-scp

• STEP 2. Execute Agent-Manager first

$ cd <DELTA>
$ bin/run-delta <configuration file>
(e.g., bin/run-delta config/manager_vm.cfg)

 DELTA: A Penetration Testing Framework for Software-Defined Networks

 [pP]	- Show all known attacks
 [cC]	- Show configuration info
 [kK]	- Replaying known attack(s)
 [uU]	- Finding an unknown attack
 [qQ]	- Quit

Command>_

• STEP 3. Connect Web-based UI (port number is 7070)

Main Contributors

• Seungsoo Lee (KAIST)
• Jinwoo Kim (KAIST)
• Seungwon Woo (KAIST)
• Changhoon Yoon (KAIST)
• Sandra Scott-Hayward (Queen's University Belfast)
• Seungwon Shin (KAIST)

Collaborators

• Phil Porras, Vinod Yegneswaran (SRI International)
• Kyuho Hwang, Daewon Jung (National Security Research Institute)
• Atto Research
• 

Questions?

Send questions or feedback to: [email protected], [email protected] or [email protected]