'Overflow attacks' presentation slideshows

CS 333 Introduction to Operating Systems Class 20 - Security

Jonathan Walpole Computer Science Portland State University. CS 333 Introduction to Operating Systems Class 20 - Security. Overview. Overview of security issues User authentication Protection domains and protection mechanisms Internal attacks

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Control Hijacking Attacks

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Control Hijacking Attacks

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Control Hijacking Attacks

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Control Hijacking Attacks

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Control Hijacking Attacks

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Control Hijacking Attacks

Control Hijacking Attacks. Buffer overflows and format string bugs. Buffer overflows. Extremely common bug. First major exploit: 1988 Internet Worm. fingerd. 15 years later: ? 50% of all CERT advisories: 1998: 9 out of 13 2001: 14 out of 37 2003: 13 out of 28

892 views • 28 slides

Control Hijacking Attacks

Control Hijacking Attacks. Buffer overflows and format string bugs. Buffer overflows. Extremely common bug. First major exploit: 1988 Internet Worm. fingerd. 15 years later: ? 50% of all CERT advisories: 1998: 9 out of 13 2001: 14 out of 37 2003: 13 out of 28

479 views • 28 slides

Control Hijacking Attacks

Control Hijacking Attacks. Buffer overflows and format string bugs. Buffer overflows. Extremely common bug. First major exploit: 1988 Internet Worm. fingerd. 15 years later: ? 50% of all CERT advisories: 1998: 9 out of 13 2001: 14 out of 37 2003: 13 out of 28

305 views • 28 slides

Libsafe for Windows

Libsafe for Windows. Shuo Chen Mentor: Timothy K. Tsai Avaya Labs Aug. 16, 2001. Background: Libsafe for Linux. Released in April 2000, Libsafe has gained popularity in the Linux community. Libsafe is very easy to install. Once installed, Libsafe does its job transparently.

519 views • 14 slides

Agenda

Agenda. Last words on buffer overflows Overview of a few more techniques Defenses Attacks on network protocols. Stack-based overflow: more techniques. Injected code can be in The overflowed buffer itself An environment variable Another buffer (which is not overflowed)

66 views • 6 slides