John works as a professional Ethical Hacker.

GIAC GCIH Question Answer

John works as a professional Ethical Hacker. He has been assigned a project to test the security of www.we-are-secure.com. He performs Web vulnerability scanning on the We-are-secure server. The output of the scanning test is as follows:

C:\whisker.pl -h target_IP_address

-- whisker / v1.4.0 / rain forest puppy / www.wiretrip.net -- = - = - = - = - =

= Host: target_IP_address

= Server: Apache/1.3.12 (Win32) ApacheJServ/1.1

mod_ssl/2.6.4 OpenSSL/0.9.5a mod_perl/1.22

+ 200 OK: HEAD /cgi-bin/printenv

John recognizes /cgi-bin/printenv vulnerability ('Printenv' vulnerability) in the We_are_secure server. Which of the following statements about 'Printenv' vulnerability are true?

Each correct answer represents a complete solution. Choose all that apply.

This vulnerability helps in a cross site scripting attack.

'Printenv' vulnerability maintains a log file of user activities on the Website, which may be useful for the attacker.

The countermeasure to 'printenv' vulnerability is to remove the CGI script.

With the help of 'printenv' vulnerability, an attacker can input specially crafted links and/or other malicious scripts.