PPT-Non Malicious Program Errors (Buffer Overflows)

Gabe Kanzelmeyer CS 450 41410 Overview What is buffer overflow How memory is processed and the stack The threat Stack overrun attack Dangers Prevention What is buffer overflow A buffer arraystring that holds data. More over buffer overflow vulnerabilities dominate the area of remote network penetra tion vulnerabilities where an anonymous Inter net user seeks to gain partial or total control of a host If buffer overflow vulnerabilities could be effectively eli More over buffer overflow vulnerabilities dominate the area of remote network penetra tion vulnerabilities where an anonymous Inter net user seeks to gain partial or total control of a host If buffer overflow vulnerabilities could be effectively eli More over buffer overflow vulnerabilities dominate the area of remote network penetra tion vulnerabilities where an anonymous Inter net user seeks to gain partial or total control of a host If buffer overflow vulnerabilities could be effectively eli Overflow Example. Dan Fleck. CS469 Security Engineering. Reference: . http://. www.thegeekstuff.com. /2013/06/buffer-overflow/ . Coming up: Buffer Overflows. 1. 1. Buffer Overflows. Buffer overflows occur when some sized portion of memory is overwritten with something bigger.. Nicole Hamilton, Dennis . Meng. , Alex . Shie. , . Lio. . Sigerson. In terms of computing, a malicious attack can be any physical or electronic action taken with the intent of acquiring, destroying, modifying, or accessing a user’s data without permission. . Sean Ford, Macro . Cova. , . Christopher . Kruegel. , Giovanni . Vigna. University of California, Santa Barbara. ACSAC 2009. Outline. About Flash. An Attack Sample. Evasion. Design and Implementation. Our City’s . Old Sewers. How the state is helping. In early 2015, New Jersey issued new permits to the 25 communities and sewage treatment plants that have CSOs. These permits require that cities and treatment plants must: . Serious Note. Try a web search for “buffer overflow exploit”.. Check alt.2600, rootshell.com, antionline.com – you can find long lists of . exploits. based on buffer overflow.. Even the original version of . What is an Exploit?. An . exploit. . is any . input. (i.e., a piece of software, an argument string, or sequence of commands) that takes advantage of a bug, glitch or vulnerability in order to cause an attack. Trausti Saemundsson, . Reykjavik University. Introduction. I am Trausti Saemundsson, a MSc student at Reykjavik University in Iceland . My supervisor is Ymir Vigfusson . I´m here in London doing research with Gregory Chockler on a multitenant cache algorithm . modified from slides of . Lawrie. Brown. Buffer Overflow. a very common attack mechanism. first wide use by the Morris Worm in 1988. prevention techniques known. still of major concern. legacy of buggy code in widely deployed operating systems and applications. modified from slides of . Lawrie. Brown. Buffer Overflow. a very common attack mechanism. first wide use by the Morris Worm in 1988. prevention techniques known. still of major concern. legacy of buggy code in widely deployed operating systems and applications. ealize What I Was Saying of me teasing me about the clothes Im wearing and the style of music I listen to and stuff like that And I think I just said and it really doesnt sound like me I said You sh Dan Fleck. CS469 Security Engineering. Reference: . http://. www.thegeekstuff.com. /2013/06/buffer-overflow/ . Coming up: Buffer Overflows. 1. 1. Buffer Overflows. Buffer overflows occur when some sized portion of memory is overwritten with something bigger..