Showing Posts About

2016

  • 29 Nov 2016

Hello MS08-067, My Old Friend

A proof-of-concept exploit was developed for the MS08-067 vulnerability targeting 64-bit Windows Server 2003 x64 SP0. The work addressed the lack of publicly available exploits for 64-bit systems vulnerable to this critical remote code execution flaw. The article provides insights into the challenges of 64-bit exploit development without introducing new exploit techniques.

  • 17 Nov 2016

Working 9 till 5

A summer intern at MWR conducted security research on the Android game "Legion Hunters", uncovering multiple vulnerabilities in the game's login system. The research revealed unencrypted API calls, weak authentication mechanisms, and insecure account management that could allow unauthorized access to user accounts. The intern demonstrated how an attacker could potentially log in as any user by exploiting these security flaws.

One Template To Rule 'Em All

A presentation explored how Microsoft Office VBA and templates can be exploited as a persistent malware delivery mechanism. The talk demonstrated vulnerabilities in locked-down environments through a proof-of-concept tool called WePWNise. VBA-enabled files remain an attractive attack vector due to business requirements and human factors in targeted attacks.

  • 3 Nov 2016

A Penetration Tester’s Guide to the Azure Cloud

This presentation provides a comprehensive guide to security assessment of Microsoft Azure Cloud services. It explores key security components, controls, and configurations across Azure deployments. The talk introduces Azurite, a tool for collecting and visualizing Azure infrastructure information.

  • 3 Nov 2016

AVRop VM: A ROP based M/o/Vfuscator VM on a Harvard device

A novel virtual machine (VM) based on Return-Oriented Programming (ROP) was developed for an AVR microcontroller. The VM adapts the Movfuscator concept to a Harvard architecture device, implementing a single ROP chain that can execute different payloads through memory-mapped instruction interpretation. The approach allows for executing varied functionality using the same ROP chain on an embedded device with limited resources.

Needle: Finding Issues within iOS Applications

Needle is an iOS application security testing tool presented at OWASP AppSec USA 2016. The tool enables comprehensive vulnerability identification in iOS applications through both black-box and white-box testing methodologies. Marco Lancini's presentation detailed Needle's architecture and testing capabilities for finding security issues in mobile applications.

Static Analysis for Code and Infrastructure

Static analysis techniques for software development are explored in this presentation by Nick Jones at DevSecCon 2016. The talk covers methods like taint checking and control flow graph analysis for identifying software bugs early in the development cycle. Guidance is provided on integrating static analysis tools effectively into development environments and infrastructure.

  • 21 Oct 2016

A Hybrid Approach to ICS Intrusion Detection

SENAMI introduces a hybrid intrusion detection approach for Industrial Control Systems that combines passive network monitoring with selective active monitoring of critical Siemens S7 PLC variables. The method focuses on detecting value tampering attacks by monitoring three key memory locations with minimal performance impact. The approach achieves a 93% detection rate of active threats while avoiding overloading legacy PLC systems.

  • 18 Oct 2016

Securing the loading of dynamic code

This article explores the security risks associated with dynamic code loading through reflection in programming languages. It discusses methods to secure reflective code loading, including techniques like hashing, code signing, and file permissions to prevent unauthorized code execution and potential privilege escalation vulnerabilities.

Fuzzing the Windows kernel

A presentation by Yong Chuan Koh at HITB GSEC 2016 introduced a Python-based fuzzing framework for testing Windows kernel security. The framework is designed to be scalable and extensible for comprehensive kernel vulnerability detection. Presentation slides are available for download from the original source.

Windows Kernel Fuzzing

A distributed fuzzing technique was developed to target the Windows kernel and identify critical vulnerabilities. The approach focused on generating high-quality test cases to detect potential privilege escalation and sandbox breakout exploits. The fuzzing method scaled across hundreds of CPU cores to systematically assess the kernel's attack surface.

Accessing Internal Fileshares through Exchange ActiveSync

Exchange ActiveSync (EAS) can be exploited to access internal Windows file shares using only user mailbox credentials. The vulnerability was confirmed in Exchange 2013 and 2016 with near-default configurations. Attackers can list file share contents and download files by using specific EAS commands, potentially bypassing traditional access controls.

Popping my DoS Cherry at DerbyCon

DerbyCon 6 was a cybersecurity conference featuring notable offensive security talks and tool releases. Key presentations covered topics like privilege escalation, threat emulation, and Exchange/Outlook security. Several new offensive security tools were introduced, including Rotten Potato, Lucky Strike, MailSniper, and OWA-Toolkit.

  • 16 Sep 2016

H-field electromagnetic sniffing

An electromagnetic side-channel attack technique using a custom H-field sensor is demonstrated to sniff secret information from electronic devices. The method involves capturing electromagnetic emissions during data transmission using off-the-shelf components like a shielded-loop antenna, low-noise amplifier, and software-defined radio. By processing the captured signals through cross-correlation and statistical analysis, hidden serial communication data can be successfully extracted.

Malicious Outlook Rules

XRulez is a tool that enables programmatic creation of malicious Outlook rules by injecting rules directly into Exchange servers. The tool allows attackers to create persistent remote code execution mechanisms via email triggers without requiring direct credential access. By exploiting MAPI sessions, malicious rules can be set up to execute payloads when specific email conditions are met.

  • 17 Aug 2016

A quick intro to Needle

Needle is an open-source modular framework designed to streamline iOS application security assessments. The tool provides a comprehensive set of modules for binary analysis, storage examination, dynamic analysis, hooking, communications testing, and static code checks. Its modular design allows security professionals to easily conduct thorough iOS app security evaluations.

Platform Agnostic Kernel Fuzzing

Platform agnostic kernel fuzzing research developed a method for systematically testing system and library calls across Windows and POSIX kernels. The approach focused on effectively logging crashes, reproducing vulnerabilities, and scaling fuzzing across multiple virtual machines. The research provided a framework for identifying kernel-level bugs through comprehensive and methodical testing.

  • 11 Aug 2016

The hack that changed the blockchain perspective

The 2016 DAO hack on Ethereum exposed a critical recursive call vulnerability in a smart contract. An attacker exploited this flaw to drain 3.6 million ETH, triggering a controversial hard fork that challenged fundamental principles of decentralized blockchain technology. The incident highlighted significant security risks in early blockchain smart contract implementations.

Bug hunting with static code analysis

Static code analysis techniques can improve application security by identifying vulnerabilities early in the software development lifecycle. The presentation explores automated methods for detecting security flaws, ranging from simple scripts to sophisticated analysis tools. These techniques can be integrated into continuous integration systems to proactively catch and resolve security issues before product release.

  • 24 Jun 2016

Alice, Bob, and Eve: How quantum technology can secure against adversaries.

Quantum key distribution (QKD) offers a provably secure communication method that protects against potential quantum computer attacks on classical encryption. The technique uses quantum mechanics principles, specifically the Heisenberg uncertainty principle, to ensure uninterceptable communication between parties. QKD provides a robust alternative to traditional encryption methods that could be compromised by quantum computing technologies.

  • 24 Jun 2016

Don't Try This at Home: Decapping ICs With Boiling Acid.

A technical blog post details the process of decapping integrated circuits using boiling nitric and sulphuric acids. The technique involves dissolving the epoxy packaging to expose the silicon chip inside. Decapping can be used for identifying counterfeit chips, resetting lock bits, and performing hardware reverse engineering.

  • 20 Jun 2016

The current state of quantum cryptography, QKD, and the future of information security.

Quantum key distribution (QKD) offers a provably secure communication method based on quantum physics principles. The technology leverages the Heisenberg uncertainty principle to create encryption keys that cannot be intercepted without detection. Commercial QKD systems are being developed to extend communication ranges and integrate with existing security infrastructure.

  • 14 Jun 2016

D-Wave, why all the controversy?

D-Wave's quantum computer uses quantum annealing architecture, specialized for solving optimization problems. Unlike universal quantum computers, it offers significant speed advantages for certain computational tasks but has limitations in quantum scaling and programmability. The computer can solve some optimization problems much faster than classical computers, though its applicability remains restricted to specific problem types.

  • 7 Jun 2016

Quantum paradoxes: Popping the bubble with Shor's algorithm.

Quantum computers pose a significant threat to current cryptographic systems through Shor's algorithm, which can efficiently factor large prime numbers used in encryption. The algorithm leverages quantum mechanical principles and Fourier transforms to break RSA encryption by finding prime factors much faster than classical computers. Increasing investments in quantum technologies suggest that cryptographic systems may become vulnerable in the future as quantum computing capabilities advance.

Visualising Organisational Charts from Active Directory

This article demonstrates techniques for extracting and visualizing organizational hierarchies from Active Directory using tools like Metasploit, SQLite, and Neo4j. The methods enable mapping of reporting structures and relationships within an organization by converting Active Directory data into a graph database. Complex queries about organizational relationships can be performed dynamically, revealing management chains and reporting structures.

Safer Shellcode Implants

This article discusses techniques for creating safer shellcode implants by implementing runtime security controls. The proposed methods include ensuring single execution through mutex checks, validating the target endpoint using host-specific identifiers, and adding an expiry time to control the implant's lifecycle. Implementation examples are provided in both assembly and C languages to demonstrate these security controls.

  • 19 Apr 2016

Heap tracing with WinDbg and Python

This article demonstrates how to use Python and PyKd to create WinDbg scripts for heap tracing in Windows. The script hooks memory allocation functions like RtlAllocateHeap and RtlFreeHeap to log heap operations. The technique allows visualization of memory allocation patterns and can support exploit development by providing insights into heap behavior.

Masquerading as a Windows System Binary Using Digital Signatures

This article demonstrates a technique for creating fake digital certificates that mimic Microsoft's code signing certificates. By generating certificates that look like they are from Microsoft and installing a custom root CA, malicious Windows binaries can be signed to appear legitimate. The method allows attackers to create executables that blend in with system processes and potentially evade initial detection.

Offline SQL Querying of Active Directory

ADOffline is a tool that converts Active Directory LDAP data into a SQLite database for offline analysis. It enables cybersecurity professionals to perform detailed reconnaissance by querying domain users, groups, and computers without maintaining a live connection to the domain controller. The tool supports complex SQL queries and provides intuitive views to explore Active Directory information.

  • 5 Apr 2016

Windows Kernel Exploitation 101: Exploiting CVE-2014-4113

This article provides a detailed walkthrough of exploiting CVE-2014-4113, a Windows kernel vulnerability. The guide demonstrates the process of creating an exploit for Windows 7 SP1 32-bit by analyzing an original Anti-Virus vendor report. The goal is to make kernel exploitation more accessible to cybersecurity researchers.

Egress Checking

The EgressCheck Framework is a tool designed to help penetration testers and system administrators identify network egress opportunities. It generates traffic across multiple ports and protocols, capturing connection attempts using tcpdump. The framework supports both TCP and UDP scanning, and can generate one-liner scripts for Python and PowerShell.

Persistence Architecture Matters

This article explores the Windows-on-Windows (WOW) redirection layer in 64-bit Windows systems. It explains how filesystem and registry paths are dynamically remapped depending on the process architecture. The technical explanation reveals how 32-bit and 64-bit processes interact with system directories and registry keys differently.

  • 23 Mar 2016

LoRa Security: Building a secure LoRa solution

A whitepaper by Rob Miller explores the security aspects of LoRaWAN technology. The document provides insights into securing LoRa systems and understanding potential attack methodologies. It aims to help developers comprehend their security responsibilities when building LoRa solutions.

Abusing PuTTY & Pageant through native functionality

A technique for remotely interacting with SSH keys stored in PuTTY's Pageant SSH agent on Windows is explored. The method leverages native functionality to proxy SSH authentication requests through a compromised workstation without traditional exploitation. An attack tool called PageantJacker enables forwarding authentication requests to a remote Pageant instance, allowing an attacker to use a target's SSH keys from their own machine.

QNX: 99 Problems but a Microkernel ain't one!

This presentation explores security research on the QNX microkernel operating system used in critical systems like automotive and consumer devices. The talk examined QNX's security architecture through reverse engineering and fuzzing techniques. The goal was to provide insights into QNX subsystems and potential attack surfaces for privilege escalation.

QNX: Security Architecture Whitepaper

A whitepaper by Alex Plaskett and Georgi Geshev examines the security architecture of QNX, a microkernel operating system. The document explores key operating system features and potential attack vectors against QNX-based platforms. The research identifies security weaknesses and suggests opportunities for further investigation into the QNX platform's security.

When LanMan history reveals the present and future, but might just be lying to you

Windows password history hashes may contain seemingly random data even when LanMan hash storage is disabled. Analysis of these historical hashes can reveal password patterns and potentially help guess current user credentials during security assessments. Password history examination demonstrates how users often create predictable password sequences despite technical controls.

The Pageantry of Lateral Movement

A presentation on lateral movement techniques in network penetration testing explores abusing Pageant (PuTTY's SSH agent) on Windows hosts. The talk demonstrates a nearly undetectable method of tunneling SSH agent traffic using a meterpreter extension. Improvements were made to an existing reconnaissance tool to enhance its utility during simulated attacks.