Configuring Network Access Policy to control access to SSL-enabled websites and Non-web applications.

Transcription

1 Configuring Network Access Policy to control access to SSL-enabled websites and Non-web applications. Madhusudhanan Ravichandran and Sangram Palande L2 Technical Engineer IBM Security Systems February 01, 2016

2 Session Agenda Use Case 1. Configuring a domain certificate category in a Network Access Policy to control access to SSL-enabled websites. 2. Configuring XGS to control Non-web applications access over the network. 2

3 What is a NAP rule? 3

4 What is an Application object? Controls the types of applications and websites that can communicate across your network. Using four different types of application objects, you can control how desktop applications communicate across your network, or control access to certain types of web sites and web-based applications. What is a Domain certificate category? A domain certificate category is where we access a certain domain certificate while accessing the HTTP/HTTPS urls which is issued by the host where in our X-force has classified certain Domain certificate categories which are available in common. For Example: When a user tried to access a banking website we will access certain domain certificates issued by the banks in order to have a secure transaction. What is a Domain Certificate list? A Domain Certificate List can be used in a Network Access Policy to allow or deny access to a list of specific domains independent of a Domain Certificate Category. 4

5 Configuring a domain certificate category in a Network Access Policy to control access to SSL-enabled websites This use case describes how to configure a Network Access Policy to control the user s access to a specific Domain Certificate Category. In this example, XGS blocks the user s access to web storage sites using a Domain Certificate Category. Note: A Domain Certificate List can be used in a Network Access Policy to allow or deny access to a list of specific domains independent of a Domain Certificate Category. 5

6 Accessing the Network Access Policy Configuring a Network Access rule 6

7 On the Response tab, add the Event Log object to Added Objects. On the Source tab, add Any to Added Objects and leave the others in Available Objects. On the Destination tab, add Any to Added Objects and leave the others in Available Objects. 7

8 On the Application tab, Click New and select Domain Certificate Categories. 8

9 In the Add Domain Category window, specify the Name for the object. 9

10 On the Domain Categories tab, click the Filter parameters: Match : All Rules Column : Available Domain Certificate button and create a filter using the following Condition : Contains Value : Banking 10

11 The Filter returns a list of Domain Categories with web storage content. Add Banking - All to the Added Domain Certificates list. Click Save Configuration. 11

12 12

13 Deploying policy 13

14 Web Page blocked message when trying to access the bank website 14

15 View Network Access Events 15

16 Session Agenda Use Case 2. Configuring XGS to control Non-Web applications access over the network 16

17 In this session we are covering below points. What are Non-Web Applications? How to control Non-Web application access over the network? How to monitor Non-Web application access using XGS 17

18 What are Non-Web Applications? Non-Web applications are Installed on user workstation or enabled using an executible file. Cannot be accessed using web browser. Some non-web applications use predefined ports to send traffic over the network. These applications can be blocked using specfic TCP/UDP ports by network device. Example: Microsoft Remote Desktop(3389), Telnet(23), SSH(22) Peer-to-peer (P2P) applications, instant messaging applications, and social networking applications use randomly assigned dynamic ports. These applications need to be blocked using application signature on the Network device. Example: Skype, bittorrent, Jabber. 18

19 Skype Desktop Application 19

20 Create New Network Access Policy Click the New button to open the Add Network Access Rule window. 20

21 Configuring a Network Access rule On the General Configuration tab, enter 1 in the Order field. Select the Enable check box. Set the Action to Reject. 21

22 On the Response tab, add the Event Log object to Added Objects. 22

23 On the Source tab, add Any to Added Objects and leave the others in Available Objects. 23

24 On the Destination tab, add Any to Added Objects and leave the others in Available Objects. 24

25 On the Application tab, Click New and select Non-Web Application. 25

26 *Note: XGS provides a limited number of application categories, including commonly used applications that you might want to reject or to allow access to your network. 26

27 In the Add Non-web Application Object window search for key work 'skype', specify the Name and select the Skype VOIP, Instant Messaging check box. 27

28 On the Restriction tab, select Any for the Protocol and click Save Configuration. * Note: This tab can be used to select any specific port to be blocked by the user. 28

29 Add the newly created Non-web Application object 'Skype' to Added Objects 29

30 On the Inspection tab, add the Default IPS object to Added Objects. 30

31 On the Schedule tab, leave Added Objects empty. Click Save Configuration. 31

32 Deploying Policy Click on Deploy to apply the configuration changes. 32

33 Updated network Updated Network Access Policy View 33

34 View Network Access Events 34

35 Skype Blocked using Network Access policy 35

36 References com.ibm.alps.doc/tasks/alps_configuring_network_protection_policy_rules.htm 3. com.ibm.alps.doc/tasks/alps_configuring_nonweb_application_objects.htm? lang=en 36

37 Questions?

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39 Statement of Good Security Practices: IT system security involves protecting systems and information through prevention, detection and response to improper access from within and outside your enterprise. Improper access can result in information being altered, destroyed, misappropriated or misused or can result in damage to or misuse of your systems, including for use in attacks on others. No IT system or product should be considered completely secure and no single product, service or security measure can be completely effective in preventing improper use or access. IBM systems, products and services are designed to be part of a lawful, comprehensive security approach, which will necessarily involve additional operational procedures, and may require other systems, products or services to be most effective. IBM DOES NOT WARRANT THAT ANY SYSTEMS, PRODUCTS OR SERVICES ARE IMMUNE FROM, OR WILL MAKE YOUR ENTERPRISE IMMUNE FROM, THE MALICIOUS OR ILLEGAL CONDUCT OF ANY PARTY. THANK YOU Copyright IBM Corporation All rights reserved. The information contained in these materials is provided for informational purposes only, and is provided AS IS without warranty of any kind, express or implied. IBM shall not be responsible for any damages arising out of the use of, or otherwise related to, these materials. Nothing contained in these materials is intended to, nor shall have the effect of, creating any warranties or representations from IBM or its suppliers or licensors, or altering the terms and conditions of the applicable license agreement governing the use of IBM software. References in these materials to IBM products, programs, or services do not imply that they will be available in all countries in which IBM operates. Product release dates and / or capabilities referenced in these materials may change at any time at IBM s sole discretion based on market opportunities or other factors, and are not intended to be a commitment to future product or feature availability in any way. IBM, the IBM logo, and other IBM products and services are trademarks of the International Business Machines Corporation, in the United States, other countries or both. Other company, product, or service names may be trademarks or service marks of others.