Why is that?
John is using Firewalk to test the security of his Cisco PIX firewall. He is also utilizing a sniffer located on a subnet that resides deep inside his network. After analyzing the sniffer log files, he does not see any of the traffic produced by Firewalk. Why is that?
What has happened?
You are running through a series of tests on your network to check for any security vulnerabilities. After normal working hours, you initiate a DoS attack against your external firewall. The firewall quickly freezes up and becomes unusable. You then initiate an FTP connection from an external IP into your internal network. The connection is successful even though you have FTP blocked at the external firewall. What has happened?
What can you infer from this error window?
To test your website for vulnerabilities, you type in a quotation mark (? for the username field. After you click Ok, you receive the following error message window:
What can you infer from this error window?
Exhibit:
Why is that?
After passing her CEH exam, Carol wants to ensure that her network is completely secure. She implements a DMZ, statefull firewall, NAT, IPSEC, and a packet filtering firewall. Since all security measures were taken, none of the hosts on her network can reach the Internet. Why is that?
what changes should the client company make?
Click on the Exhibit Button
Paulette works for an IT security consulting company that is currently performing an audit for the firm ACE Unlimited. Paulette’s duties include logging on to all the company’s network equipment to ensure IOS versions are up-to-date and all the other security settings are as stringent as possible. Paulette presents the following screenshot to her boss so he can inform the client about necessary changes need to be made. From the screenshot, what changes should the client company make?
Exhibit:
What will the following URL produce in an unpatched IIS Web Server?
What will the following URL produce in an unpatched IIS Web Server? http://www.thetargetsite.com/scripts/..%co%af../..%co%af../windows/system32/cmd.exe?/c+dir+c:
If an attacker’s computer sends an IPID of 31400 to a zombie computer on an open port in IDLE scanning,
If an attacker’s computer sends an IPID of 31400 to a zombie computer on an open port in IDLE scanning, what will be the response?
Which feature will you disable to eliminate the ability to enumerate this information on your Cisco routers?
Your company uses Cisco routers exclusively throughout the network. After securing the routers to the best of your knowledge, an outside security firm is brought in to assess the network security. Although they found very few issues, they were able to enumerate the model, OS version, and capabilities for all your Cisco routers with very little effort. Which feature will you disable to eliminate the ability to enumerate this information on your Cisco routers?
Why would a scanner like Nessus is not recommended in this situation?
George is performing security analysis for Hammond and Sons LLC. He is testing security vulnerabilities of their wireless network. He plans on remaining as “stealthy” as possible during the scan. Why would a scanner like Nessus is not recommended in this situation?
What kind of results did Jim receive from his vulnerability analysis?
Jim performed a vulnerability analysis on his network and found no potential problems. He runs another utility that executes exploits against his system to verify the results of the vulnerability test. The second utility executes five known exploits against his network in which the vulnerability analysis said were not exploitable. What kind of results did Jim receive from his vulnerability analysis?