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Chapter 3 Application and network Attacks
Chapter 3 Application and network attacks
55
Computer Science
Undergraduate 4
01/27/2013

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Term
Add-ons
Definition
Programs that provide additional functionality to web browsers
Term
ARP
Address Resolution protocol
Definition
Part of the TCP/IP protocol for determining the MAC address based on the IP address
Term
ARP Poisoning
Definition
An attack that corrupts the ARP cache
Term
Attachments
Definition
Files that are coupled to an email message
Term
Buffer Overflow
Definition
An attack that occurs when a process attempts to store data in RAM beyond the boundaries of a fixed length storage buffer
Term
Client-Side Attack
Definition
An attack that targets vulnerabilities in client applications that interact with a compromised server or processes malicious data
Term
Cookie
Definition
A file on a computer in which a server stores user-specific information
Term
Command injection
Definition
Injecting and executing commnands to execute on a server
Term
XSS
Cross-site scripting
Definition
An attack that injects scripts into a web application server to direct attacks at clients
Term
Denial of Service
Definition
An attack that attempts to prevent a system from performing its normal functions
Term
Directory Traversal
Definition
An attack that takes advantage of a vulnerability in the web application program or the web server software so that a user can move from the root directory to other restricted directories
Term
DDOS
Distributed Denial of Service
Definition
An attack that uses multiple zombie computers (even hundreds or thousands)in a botnet to flood a device with requests
Term
DNS Poisoning
Definition
An attack that substitutes DNS addresses so that the computer is automatically redirected to another device
Term
DNS
Domain Name Service
Definition
A hierarchical name system for matching computer names and numbers
Term
First-Party Cookie
Definition
A cookie that is created from the web site that currently is being viewed
Term
Flash cookie
Definition
A cookie named after the Adobe flash player, also known as local shared objects(LSO) Flash cookies cannot be deleted through the browsers normal configuration settings as regular cookies can, typically they are saved in multiple locations on the hard drive and can be take up as much as 100,000 bytes of storage per cookie (about 25 times the size of a normal cookie)Flash cookies can also be used to reinstate regular cookies that a user has deleted or blocked
Term
Host Table
Definition
A list of the mappings of names to computer numbers
Term
HTTP Header
Definition
Part of HTTP that is composed of fields that contain the different characteristics of the data that is being transmitted
Term
HTTP Header Manipulation
Definition
Modifying HTTP headers to create an attack
Term
Man-in-the-middle
Definition
An attack that intercepts legitimate communication and forges a fictitious response to the sender
Term
Persistent Cookie
(Tracking cookie)
Definition
A cookie that is recorded on the hard drive of the computer and does not expire when the browser closes
Term
Ping
Definition
A utility that sends an ICMP echo request message to a host
Term
Ping Flood
Definition
An attack that uses the Internet control message protocol to flood a victim with packets
Term
Privilege escalation
Definition
An attack that exploits a vulnerability in software to gain access to resources that the user would normally be restricted from obtaining
Term
Replay
Definition
An attack that makes a copy of the transmission before sending it to the recipient
Term
Secure Cookie
Definition
A cookie that is only used when when a browser is visiting a server using a secure connection
Term
Session Cookie
Definition
A cookie that i stored in RAM instead of on the hard drive, and only lasts for the duration of visiting a web site
Term
Session Hijacking
Definition
An attack in which an attacker attempts to impersonate the user by using his session token
Term
Session Token
Definition
A form of verification used when accessing a secure web application
Term
Smurf Attack
Definition
An attack that broadcasts a ping request to all computers on the network yet changes the address from which that request came to that of the target
Term
Spoofing
Definition
Impersonating another computer or device
Term
SQL Injection
Definition
An attack that targets SQL servers by injecting commands to be manipulated by the database
Term
SYN Flood Attack
Definition
An attack that takes advantage of the procedures for initiating a TCP session
Term
Third-Party Cookies
Definition
A cookie that was created by a third party that is different from the primary web site
Term
Transitive Access
Definition
An attack involving using a third party to gain access rights
Term
Extensible Markup Language
XML
Definition
A markup language that is deigned to carry data instead of indicating how to display it
Term
XML Injection
Definition
An attack that injects XLM tags and data into a database
Term
Zero-Day-Attacks
Definition
Attacks that exploit previously unknown vulnerabilities, so victim have no time (zero days) to prepare or defend against the attacks
Term
Application Attacks
Definition
Web
Client-Side
Buffer overflow
Term
Hardening the Web server
Definition
Enhancing the security of the web server operating systems and system systems
Term
protecting the network
Definition
Traditional network security devices can block traditional netwrok attacks, they cannot always block Web application attacks
Term
Securing Web Applications
Definition
Hardening the web server
protecting the network
Term
Most common web application atatcks
Definition
Cross-site scripting
SQL injection
XML Injection
Command injection
Directory Traversal
Term
XSS attack requires two criteria
Definition
Accepts user input without validating
Uses input in a response without encoding it
Term
root directory
Definition
Specific directory on a web server's file system
Term
Web application atatcks are considered
Definition
server-side attacks
Term
Drive by download
Definition
Attacked by viewing a web page
Term
Zero Pixel IFrame
Definition
Inline frame
HTML element that allows for embedding another HTML document inside the main document
Term
Common clent side atatcks
Definition
Header Manipulation
Cookies
Attachments
session Hijacking
Add-ons
Term
Referer
Definition
HTTP header attacks
Allow the attacker to save the original web page, modify it, and then host it from her own computer
Term
Accept-Language
Definition
Web applications pass the contents of this filed directly to the database
build a filename from which to look up the correct language text, an attacker could generate a directoty traversal attack
Term
whatever AND email IS NULL
Definition
Determine the names of different fields in the database
Term
whatever and 1=(select count(*) from tabname):
Definition
Discover the name of the table
Term
whatever OR fullname LIKE"%MIA%
Definition
Find specific users
Term
Web servers typically restricted to root directory
Definition
MS IIS is C:\INETPUB\WWWROOT
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