In the early days of the public internet, we believed that we were helping build something totally Pay To Get Management Presentation, a world that would leave behind the shackles of age, of race, of gender, of class, even of law.
Twenty years on, "cyberspace" looks a lot less revolutionary than it once did. Hackers have become information security professionals. Racism and sexism have proven resiliant enough to thrive in the digital world. Big companies are getting even bigger, and the decisions corporationsnot just governmentsmake about security, privacy, and free speech affect hundreds of thousands, or millions, of people.
The Four Horsemen of the Infocalypseterrorists, pedophiles, drug dealers, and money launderersare driving online policy as governments around the world are getting more deeply involved in the business of regulating the network. Centralization, Regulation, and Globalization are the key words, and over the next twenty years, we'll see these forces change digital networks and information security as we know it today.
So where does that leave security, openness, innovation, and freedom? The Digital Millennium Copyright Act is being used to weld the Pay To Get Management Presentation of cars shut to keep engine software safe from mechanics.
Will we still have the Freedom to Tinker even in the oldest of technologies? What does it mean that the U. Will we see liability for insecure software and what does that mean for open source? With advances in artificial intelligence that will decide Pay To Get Management Presentation gets read article over, who gets a loan, who gets a job, how far off can legal liability regimes for robots, drones, and even algorythms be?
Is the global Internet headed for history's dustbin, and what does a balkanized network mean for security, for civil rights? In this talk, Granick will look forward at the forces that are shaping and will determine the next 20 years in the lifecycle of the revolutionary communications technology that we've had such high hopes for. In the Summer ofMicrosoft silently introduced two new exploit mitigations into Internet Explorer with the goal continue reading disrupting the threat landscape.
These mitigations increase the complexity of successfully exploiting a use-after-free vulnerability. July's patch MS introduced a new strategy called MemoryProtection for freeing memory on the heap. This talk covers the evolution of the Isolated Heap and MemoryProtection mitigations, examines how they operate, and studies their weaknesses.
It outlines techniques and steps an attacker must take to attack these mitigations to gain code execution on use-after-free vulnerabilities where possible. It describes how an attacker can use MemoryProtection as an oracle to determine the address at which a module will be loaded to bypass ASLR.
Finally, additional recommended defenses are laid out to further harden Internet Explorer from these new attack vectors. Imagine a technology that is built into every Windows operating system going back to Windows 95, runs as System, executes arbitrary code, persists across reboots, and does not drop a single file to disk. With increased scrutiny from anti-virus and 'next-gen' host endpoints, advanced red teams and attackers already know that the introduction of binaries into a high-security environment is subject to increased scrutiny.
click WMI enables an attacker practicing a minimalist methodology to blend into their target environment without dropping a single utility to disk. WMI is also unlike other persistence techniques in that rather than executing a payload at a predetermined time, WMI conditionally executes code asynchronously in response to operating system events.
This talk will introduce WMI and demonstrate its offensive uses. We will cover what WMI is, how attackers are currently using it in the wild, how to build a full-featured backdoor, and how to detect and prevent these attacks from occurring.
Over the years, XML has been a rich target for attackers due to flaws in Pay To Get Management Presentation design as well as implementations. It is a tempting target because it is used by other programming languages to interconnect applications and is supported by web browsers.
In this talk, I will demonstrate how to use XSLT to produce documents that are vulnerable to new exploits.
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XSLT can be leveraged to affect the integrity of arithmetic operations, lead to code logic failure, or cause random values to use the same initialization vector. Error disclosure has always provided valuable information, but thanks to XSLT, it is possible to partially read system files that could disclose service or system's passwords.
Finally, XSLT can be used to compromise end-user confidentiality by abusing the same-origin policy concept present in web browsers. This presentation includes proof-of-concept attacks demonstrating XSLTs potential to affect Pay To Get Management Presentation systems, along with recommendations for safe development. Hardware attacks are often overlooked since they are generally considered to go here complex and resource intensive.
However certain industries, such as pay TV, are plagued by piracy and hardware counterfeits. The threat of piracy was so great that pay TV manufacturers were forced to create extensive countermeasures to protect their smartcards in the field. One of the most effective countermeasures is to implement parts or all of their proprietary algorithms in hardware. To analyze proprietary hardware implementations additional Pay To Get Management Presentation techniques are necessary.
It is no longer sufficient to follow individual signals on the chip. Instead, full extraction and analysis of the device's netlist is necessary. This talk will focus on a case study of a widely-used pay TV smartcard. The card includes extensive custom hardware functions and has yet to be compromised after over 5 click in the field. This talk will demonstrate the tools and techniques necessary for successfully performing the analysis of such a target.
The research highlights the capabilities of advanced analysis techniques. Such techniques also make analysis significantly more efficient, reducing the time required for a study from many months to a few weeks. GSM networks are compromised for over five years.
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But who cares about 2G? Those who are concerned switched off of 2G. The opportunity to analyze all protocols and cryptographical primitives due to their public availability is important. However, the main problem is that we do not have calypso phones for 3G. We do not have cheap and ready to use devices to fuzz 3G devices over the air.
Users can connect to femocells. Why don't we abuse it? Yes, there is already research that allows you to gain control over femtocell. There is also research that allows sniffing calls and messages after gaining control.
But all such solutions are not scalable. You are still bound to the telecom provider. You still have to connect to a VPN - to a core network. You have to bypass location binding and so on. Perhaps there is an easier solution? Parhaps we can create UMTS-in-a-box from readily available femtocell and have them available in large quantities without telecom-branding? We will tell the whole story from unboxing to proof-of-concept data intercept and vulnerabilities in UMTS networks with Pay To Get Management Presentation your favorite acronyms: In recent months, we focus on bug hunting to achieve root on here devices.
And also we are the first one in the world, as far as we are aware, rooting the bit android device by taking advantage of a kernel memory corruption bug. The related kernel exploitation method is unique. In this talk, we will explain the root cause of this UAF bug and also the methods used to exploit it. We will demonstrate how we can fill the kernel memory once occupied by the vulnerable freed kernel object with fully visit web page data by spraying and finally achieved arbitrarily code execution in kernel mode to gain root.
All our spraying methods and exploiting ways apply to the latest Android kernel, and we also bypass all the modern kernel mitigations on Android device like PXN and so on.
Even introduced bit address space fails to stop our rooting. And a very important thing is that the rooting is stable and reliable.
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Actually, we will present a common way to exploit android kernel Use-After-Free bug to gain root. We will also cover some new kernel security issue on the upcoming bit android platform in the future.
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The world of security is riddled with assumptions and guesses. Using data collected from hundreds of millions of Android devices, we'll establish a baseline for the major factors driving security in the Android ecosystem. This will help provide direction for the issues that we think will benefit the most from security community attention and research contributions.
Modern packers use API obfuscation techniques to obstruct malware sandboxes here reverse engineers. In such packers, API call instructions are replaced with equivalent lengthy and complex code.
API obfuscation techniques can be categorized into two according to the obfuscation time - static and dynamic. Static obfuscation embeds obfuscated instructions into the executable file. Dynamic obfuscation allocates a new memory block and copies obfuscated API function code into the newly allocated block.
For Pay To Get Management Presentation obfuscation, I suggest memory access analysis. Previous approaches use pattern matching of the obfuscating code or code optimization on instruction trace. Pattern matching and code optimization based approaches are fragile to pattern change along the version up of the packers.
My approach utilizes the API function obfuscation process which is harder to change than obfuscation pattern. Embedded obfuscator in packed file obfuscates each API function during runtime by reading the original API function code and writing the obfuscated API code on a newly allocated memory block.
Memory access analysis relates memory reads of each API function and its corresponding memory writes. Each obfuscated call instruction is replaced by the deobfuscated API possibly English Essay Writing Linking Words can of which the call target is resolved by the map from memory access analysis.
For static obfuscation, I suggest iterative run-until-API method. Previous approaches used code emulators to identify obfuscated API calls. But most code emulators are not appropriate for deobfuscation because they are developed for emulating the whole operating system. Developing own emulators is time consuming because it requires implementing complex runtime behavior, such as exception based branches and multi-threads that modern packers use.
I use a dynamic binary instrumentation tool - Intel Pin - by which the process can be monitored without being detected by protection mechanisms of the packers. After executing the packed binary until the original entry point, the tool changes the instruction pointer into an obfuscated API call address. The execution continues until the instruction pointer reaches the real API function.
So the original API function is identified, but the function itself is not executed. In order to confirm the identified API function is correct, the integrity of stack pointer and stack data Pay To Get Management Presentation also checked. This process is performed for each Pay To Get Management Presentation API call instruction.