Which type of hacker represents the highest risk to your network?
Answer(s): D
The disgruntled users have some permission on your database, versus a hacker who might not get into the database. Global Crossings is a good example of how a disgruntled employee -- who took the internal payroll database home on a hard drive -- caused big problems for the telecommunications company. The employee posted the names, Social Security numbers and birthdates of company employees on his Web site. He may have been one of the factors that helped put them out of business.
Ivan is auditing a corporate website. Using Winhex, he alters a cookie as shown below. Before Alteration: Cookie: lang=en-us; ADMIN=no; y=1 ; time=10:30GMT ; After Alteration: Cookie: lang=en-us; ADMIN=yes; y=1 ; time=12:30GMT ; What attack is being depicted here?
Cookies are the preferred method to maintain state in the stateless HTTP protocol. They are however also used as a convenient mechanism to store user preferences and other data including session tokens. Both persistent and non-persistent cookies, secure or insecure can be modified by the client and sent to the server with URL requests. Therefore any malicious user can modify cookie content to his advantage. There is a popular misconception that non-persistent cookies cannot be modified but this is not true; tools like Winhex are freely available. SSL also only protects the cookie in transit.
What is Form Scalpel used for?
Answer(s): A
Form Scalpel automatically extracts forms from a given web page and splits up all fields for editing and manipulation.
How does a denial-of-service attack work?
Answer(s): C
In computer security, a denial-of-service attack (DoS attack) is an attempt to make a computer resource unavailable to its intended users. Typically the targets are high-profile web servers, and the attack attempts to make the hosted web pages unavailable on the Internet. It is a computer crime that violates the Internet proper use policy as indicated by the Internet Architecture Board (IAB).
A file integrity program such as Tripwire protects against Trojan horse attacks by:
Tripwire generates a database of the most common files and directories on your system. Once it is generated, you can then check the current state of your system against the original database and get a report of all the files that have been modified, deleted or added. This comes in handy if you allow other people access to your machine and even if you don't, if someone else does get access, you'll know if they tried to modify files such as /bin/login etc.
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