'Bin sh' diaporamas de présentation

CSCI E-170: November 30, 2004 Administrivia Federal Rules of Evidence Logging Integrity Management

CSCI E-170: November 30, 2004 Administrivia Federal Rules of Evidence Logging Integrity Management. Administrivia. Project Proposals are due today Who is in your group? What are you doing? Not graded Quiz #2: You will be given 4 papers and expected to write a page on each. Administrivia 2.

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Threats to Information Security Part I Sanjay Goel University at Albany, SUNY

Threats to Information Security Part I Sanjay Goel University at Albany, SUNY. Course Outline. > Unit 1: What is a Security Assessment? Definitions and Nomenclature Unit 2: What kinds of threats exist? Malicious Threats (Viruses & Worms) and Unintentional Threats

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CSC 382: Computer Security

CSC 382: Computer Security. Malware. Topic. Types of Malware Trojan Horses Viruses Worms Backdoors Rootkits Self-Protection Mechanisms. Payloads. Malware Interactions. Detecting Malware. Defending against Malware. Types of Malware. Trojan Horse

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Brief introduction to the wonders of performance analysis with BSCtools

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CHAPTER 2 THE UNIX SHELLS

CHAPTER 2 THE UNIX SHELLS. by U?ur Hal?c?. layers in a unix system. User interface. Users. library interface. Standard utility programs (shell, editors, compilers, etc.). User mode. System call interface. Standard library (open, close, read, write, fork etc.). UNIX operating system

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Security

Security. Security must consider external environment of the system, and protect the system resources Intruders (crackers) attempt to breach security Threat is potential security violation Attack is attempt to breach security Attack can be accidental or malicious

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Introduction to Linux and Shell Scripting

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Buffer Overflow Attack

Buffer Overflow Attack. Outline. Understanding of Stack Layout Vulnerable code Challenges in exploitation Shellcode Countermeasures. Program Memory Stack. a,b , ptr. p tr points to the memory here. y. x. Order of the function arguments in stack. Function Call Stack.

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1) Computerfaciliteiten OAC 2) Beowulf Cluster CCM 3) UNIX 5) ?

1) Computerfaciliteiten OAC 2) Beowulf Cluster CCM 3) UNIX 5) ?. OAC(N328) FAR(P275). IBM os: AIX queue: prev. LL server: Iodine network: 144,unsafe backup: none. SGI os: irix 6.5 queue: NQE server: (gate-)nonaan network: 148,secure

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xmlsh

xmlsh. A command line shell for XML Based on the philosophy and design of the Unix Shells. David A. Lee dlee@calldei.com. www.xmlsh.org. Overview. Motivation Project Philosophy Syntax and Features Architecture Demonstration & Examples Roadmap Contribute Feedback / Q&A.

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Introduction to Information Security

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The Environment of a UNIX Process

The Environment of a UNIX Process. Introduction. How is main() called? How are arguments passed? Memory layout? Memory allocation? Environment variables Process termination. Process. A Process is program (eg., a.out) under execution in a UNIX or POSIX system.

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Snort

Snort. The Lightweight Intrusion Detection System. The other games in town. Heavyweight systems: Stateful firewalls: Example: Checkpoint Firewall One Commercial network intrusion detection systems: Example: Network Flight Recorder (NFR). The Art of Intrusion Detection:.

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Integer variables

Integer variables. #!/bin/csh # sum of numbers from $argv[1] to $argv[2] set low = $argv[1] set high = $argv[2] set sum = 0 set current = $low while ( $current <= $high) @ sum += $current @ current++ end echo The sum of the numbers from $low to $high is $sum.

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HPC at HCC Jun Wang

HPC at HCC Jun Wang. hcc.unl.edu. Outline of Workshop3. Overview of Current HPC Computing Resources at HCC. How to obtain an account at HCC . How to login with DUO security . Commonly Used Linux commands. How to change password . Familiar with SLURM queuing system.

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Return-to-libc Lab

Return-to-libc Lab. Zutao Zhu 09/25/2009. Outline. Review Set-UID assignment Discuss on Buffer-overflow Lab Return-to-libc. Review Set-UID assignment. Capture screen, please. Need to describe and explain in detail about the assignment

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Software Vulnerability Examples

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COP 4343 Unix System Administration

COP 4343 Unix System Administration. Unit 8: at cron. Automating Tasks. at, batch execute command in future controlled by atd daemon crontab execute command repeatedly controlled by crond daemon. at. syntax: at time executes commands from standard input file (-f option)

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Avoiding Backend Exploitation of Mail Forms

Max Kessler, LPIC-1. Avoiding Backend Exploitation of Mail Forms. OWASP Top 10 List. #1 Unvalidated user input #2 Broken access control (sort of) #6 Injection flaws. How do mail forms work?. A user types in their name, address and a message.

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V2012.13

V2012.13. Agenda. Old Business Delete Files New Business Week 12 Topics: Coming up: Hyland Field Trip: Feb 21 st Tiny Circuits/ Arduino Review/Demo Linux Intro (continued) Scripts/scripting. Future Meeting Preview. GAMING. OPERATING SYSTEM. NETWORK. PERIPHERALS. STORAGE. CLOUD.

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