Linksys WVC11B Active Attacks, Dictionary-Building or Table Attacks, Man-in-the-Middle Attacks

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Wireless-B Internet Video Camera

Active Attacks

Hackers use Active Attacks for three purposes: 1) stealing data, 2) using your network, and 3) modifying your network so it's easier to hack in the next time.

In an Active Attack, the hacker has gained access to all of your network settings (SSID, WEP keys, etc.) and is in your network. Once in your wireless network, the hacker has access to all open resources and transmitted data on the network. In addition, if the wireless network’s access point is connected to a switch, the hacker will also have access to data in the wired network.

Further, spammers can use your Internet connection and your ISP’s mail server to send tens of thousands of e- mails from your network without your knowledge.

Lastly, the hacker could make hacking into your network even easier by changing or removing safeguards such as MAC address filters and WEP encryption. He can even steal passwords and user names for the next time he wants to hack in.

Dictionary-Building or Table Attacks

Dictionary-building, or Table attacks, is a method of gaining network settings (SSID, WEP keys, etc.) by analyzing about a day's worth of network traffic, mostly in the case of business networks. Over time, the hacker can build up a table of network data and be able to decrypt all of your wireless transmissions. This type of attack is more effective with networks that transmit more data, such as businesses.

Man-in-the-Middle Attacks

A hacker doesn’t need to log into your network as a user—he can appear as one of the network’s own access points, setting himself up as the man-in-the-middle. To do this, the hacker simply needs to rig an access point with your network’s settings and send out a stronger signal that your access point. In this way, some of your network's PCs may associate with this rogue access point, not knowing the difference, and may begin sending data through it and to this hacker.

The trade-off for the convenience and flexibility wireless networking provides is the possibility of being hacked into through one of the methods described here. With wireless networks, even with WEP encryption, open to the persistent hacker, how can you protect your data? The following section will tell you how to do just that.

Maximizing Wireless Security

Security experts will all tell you the same thing: Nothing is guaranteed. No technology is secure by itself. An unfortunate axiom is that building the better mousetrap can often create a better mouse. This is why, in the

Appendix B: Wireless Security

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What Are The Risks?

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Contents Wireless- B Copyright and Trademarks How to Use this GuideTable of Contents Common Problems and Solutions Frequently Asked Questions Appendix a TroubleshootingAppendix B Wireless Security View Video Setup HelpCamera LEDs List of FiguresFind Camera from LAN 17 Create Links Introduction What’s in this Guide? Wireless-B Internet Video Camera Ad-Hoc and Infrastructure Modes Planning Your Wireless NetworkNetwork Layout Planning Your Wireless Network Network Layout LAN Getting to Know the Wireless-B Internet Video CameraReset Overview Connecting the Wireless-B Internet Video Camera for SetupConnection to a Wired Network for Setup Connection to a Wireless Ad-Hoc Network for SetupMoving the Camera to a Different Network Setup Wizard Setting up and Mounting the Wireless-B Internet Video CameraCameras Found Dhcp or Static IP Address Mode Settings 10 Security Settings 12 Review New Settings Stand Option Placement OptionsWall Mount Option Install Viewer & Recorder Utility Installing the Viewer & Recorder UtilityChoose Destination Location Cameras Using the Viewer & Recorder UtilityLAN FindInternet Change Settings12 Delete Camera Delete13 View Video ViewFiles Scheduled Recordings in ProgressSchedule PreferencesStop Add21 Stop Scheduled Recording Setup Wizard for the SoloLink Ddns Service Setting up the Linksys SoloLink Ddns ServiceSoloLink for Dynamic IP Address Check Connections User Name and Password Login Confirm Active Internet Connection 11 Sign Up 12 Confirmation of New Settings 14 Confirm Your Location ID 17 Create Links 19 Account Confirmation of Camera 21 Port Forwarding Information SoloLink Registration of Additional Cameras24 SoloLink Ddns View Video How to Access the Web-based UtilitySecurity Warning SetupLAN Settings Device SettingsBasic WEP Key Settings Wireless SettingsEstimated Bit Rates for Video Viewing or Recording Resolution Quality Level Bit RateVideo Settings ImageOptions PasswordAdjustments AdministratorUsers User AccessUser Database SoloLink Ddns SoloLink DdnsSoloLink Registration of Additional Cameras StatusWireless-B Internet Video Camera Log StatusUPnP AdvancedHelp 18 Administrator Help19 Upgrade Firmware Common Problems and Solutions Appendix a TroubleshootingWhen I view the video, it seems blurry Can I view video using a Macintosh or Netscape Navigator? Frequently Asked QuestionsHow many users can view the Camera’s video at the same time? Brief Overview Appendix B Wireless SecurityWhat Are The Risks? Jamming Attacks Passive AttacksMan-in-the-Middle Attacks Maximizing Wireless SecurityActive Attacks Dictionary-Building or Table AttacksWireless-B Internet Video Camera Ssid Wireless-B Internet Video Camera WEP Encryption Figure B-2 WEP Key SettingsAppendix C Upgrading Firmware Figure C-1 Upgrade FirmwareShared Resources Appendix D Windows HelpNetwork Neighborhood/My Network Places Appendix E Glossary Wireless-B Internet Video Camera Wireless-B Internet Video Camera Wireless-B Internet Video Camera Wireless-B Internet Video Camera Wireless-B Internet Video Camera User Authentication, WEP Encryption Appendix F SpecificationsStandards Ieee 8011.b, Ieee 802.3, 802.3u Ports Limited Warranty Appendix G Warranty InformationFCC Statement Appendix H Regulatory InformationSoftware License Agreement Wireless-B Internet Video Camera Industry Canada Canada Wireless-B Internet Video Camera Need to contact Linksys? Appendix I Contact InformationInformation section in this Guide
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