Flashcards in CISA Review Deck (68)
Such attacks are contreally initiated and involve the use of multiple compromised computers. The attacks work by fuloding the target site with spurious data, thereby overwhelming the network and other related resources.
Cheif information security officer
A senior level corporate official responsible for articulating and enforcingthe policies that companies uses to protect their information assets.
CISO is a much broader roll than a chief security officer (CSO ) who is normally only responsible fro pysical security within the organization
DAC ( descritionary access control ) cannot override MAC ( Mandatory access control ) , DAC is an additional filter, prohibiting still more access wtih the same exclusionary principle
cyber criminals take advantage of existing gap in the legislation of different countries when planning syber attacks in order to avoid posecution
Person who try to break the security of and gain access to somone else system without being invited to do so
Target of attack - Specfiic computer, Source of attack Computer is the object of crime. Prepetrator uses another computer to launch attack
Fraud, Unauthorized access, Phishing, Installing key loggers
Computer is the tool of crime. Target is data or information stored in the computer
Social engineering methods
Computer symbolizes the crime.Target is the user of the computers.
Social Engineering methods
Phishing, Fake websites, scam mails, Spam mails and Fake resumes for employement
Occurs when unothorzied modification affect the integrity of the data or code. Cryptographic hash is a primary defense against alteration attacks
Comprise a collection of compromised computers ( called zombie computers) running software, usually installed vaia worms, Torjan horses or back doors.
Examples: Smurt attack, Ping flood, SYS Flood, Teadrop attack, peer to peer attack, Permanant Denial of service attack, Application level flood attack, Nuke, DDOS, Reflected attack,
Occurs when misconfigured network devices allow packets to be sent toall hosts on a particular network viea the broadcast address of the network
Occurs when the target system is overwhelmed with ping packets
send a flood of TCP/SYN packts with forged sender address, causing half open connections and saturates available connections cpacity of the target machine
Involves sending mangled IP fragments with overlapping, oversized payloads to the target machine
Redirects outgoaing messages from the client back onto the client, preventing outside access, as well as flooding the client with the sent packets
Involves sending forged requests to a large number of computers that will reply to the request. Thesource IP address is spoofed to that of the targeted victime, causing the replies to flood
A user receives an email message that appears tohae originated from one source but actually was sent from another source.
A denial of service attack gthat brings down network or service by folloding it with large amount of traffic
Commonly called back doors. Bit of code embedded in program by programmers to quickly gain access during the testing or debugging phase.
An active attack in which the intruder present an identity other than the original identity. Impersonation both by people and machines fall under this category. Masquerading by machine ( also called as IP spoofing ) - A forged IP address is presented
A combination of passive and active mode of attack. This form of attack is effective particularly where the receiving end of the communicationchannel is automated and will act on receipt and interpretation of the information packets without human intervention
The criminally fraudulent process of attempting to acquire sensitive information, such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication
A pinpoint attack against a subset of people to undermine a company or organization
An attack that aminsn to redirect the traffic of a web site to a bogus web site. It can be conducted either by changing the hoset file on a victims computer or by exploiting a vulnerability in DNS server software.
The human side of breaking into computer system
act of following authorized person through a secured door or electronically attaching to authorized telecommunication link.