Using the failure to violate the site security

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Using the failure to violate the site security: exploiting the vulnerability; the person who does this: an attacker. It can be due to: Lapses in design, implementation, and operation procedures. Even security algorithms/systems are not immune! We will go over some examples in this course.
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NS-H0503-02/1104 24 IP Protocol-related Vulnerabilities Authentication based on IP source address But no effective mechanisms against IP spoofing Consequences (possible exploits) Denial of Service attacks on infrastructures, e.g. IP Spoofing and SYN Flood Smurf and Fraggle attacks OSPF Max Sequence
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NS-H0503-02/1104 25 Methods of Defence Encryption Software Controls (access limitations in a data base, in operating system protect each user from other users) Hardware Controls (smartcard) Policies (frequent changes of passwords) Physical Controls
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NS-H0503-02/1104 26 Impact of Attacks Theft of confidential information Unauthorized use of Network bandwidth Computing resource Spread of false information Disruption of legitimate services All attacks can be related and are dangerous!
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NS-H0503-02/1104 27 The Security Life Cycle The iterations of Threats Policy Specification Design Implementation Operation and maintenance
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