Writing a libemu/Unicorn Compatability Layer

In this post we are going to take a quick look at what it takes to write a libemu compatibility layer for the Unicorn engine. In the course of this work, we will also import the libemu Win32 environment to run under Unicorn. For a bit of background, libemu is a lightweight x86 emulator written in...

[SECURITY] Fedora 26 Update: libsndfile-1.0.28-1.fc26

libsndfile is a C library for reading and writing sound files such as AIFF, AU, WAV, and others through one standard interface. It can currently read/write 8, 16, 24 and 32-bit PCM files as well as 32 and 64-bit floating point WAV files and a number of compressed formats. It compiles and runs on...

Edit and Replay Network Traffic: tcpreplay

Edit and Replay Network Traffic Tcpreplay is a suite of GPLv3 licensed utilities for UNIX and Win32 under Cygwin operating systems for editing and replaying network traffic which was previously captured by tools like tcpdump and Ethereal / Wireshark . It allows you to classify traffic as client o...

FLARE Script Series: Querying Dynamic State using the FireEye Labs Query-Oriented Debugger (flare-qdb)

Introduction This post continues the FireEye Labs Advanced Reverse Engineering FLARE script series. Here, we introduce flare-qdb, a command-line utility and Python module based on vivisect for querying and altering dynamic binary state conveniently, iteratively, and at scale. flare-qdb works on...

openSUSE Security Update : gtk2 (openSUSE-2016-1117)

This gtk2 update to version 2.24.31 fixes the following issues : Security issues fixed : - CVE-2013-7447: Fixed integer overflow in image handling boo966682. Bugs fixed : - Changes from version 2.24.31 : + Backport many file chooser entry fixes and cleanups. + Don't crash if invisible files are...

Microsoft Windows 8.1 Update 2 / 10 10586 (x86/x64) - NtLoadKeyEx User Hive Attachment Point Privilege Escalation (MS16-111)

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=865 Windows: NtLoadKeyEx User Hive Attachment Point EoP Platform: Windows 10 10586 32/64 and 8.1 Update 2, not tested Windows 7 Class: Elevation of Privilege Summary: The NtLoadKeyEx system call allows an unprivileged user to loa...

HatDBG - Minimal WIN32 Debugger in Powershell

The HatDBG is A pure Powershell win32 debugging abstraction class. The goal of this project is to make a powershell debugger. It is intended to be used during internal penetration tests and red team engagements. This is exclusively for educational purposes. The debugger objects implementing a...

MSRT August 2016 release adds Neobar detection

As part of our ongoing effort to provide better malware protection, the August 2016 release of the Microsoft Malicious Software Removal Tool MSRT includes detections for BrowserModifier: Win32/Neobar, unwanted software, and Win32/Rovnix, a trojan malware family. This blog discusses...

Microsoft WinDbg - 'logviewer.exe' Crash (PoC)

Credits: HYP3RLINX + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/MS-WINDBG-LOGVIEWER-BUFFER-OVERFLOW.txt + ISR: ApparitionSec Vendor: ================= www.microsoft.com Product: ==================== WinDbg logviewer.exe LogViewer logviewer.exe, a tool...

OPAC KpwinSQL Cross Site Scripting / Local File Inclusion

OPAC KpwinSQL LFI/XSS Vulnerabilities -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Product Website : http://www.kpsys.cz/ Affected version: All -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Description: KpwinSQL suffers from an unauthenticated file inclusion vulnerability LFI when input passed thru...

All Windows Null-Free Shellcode - Functional Keylogger to File - 601 0x0259 bytes

All Windows Null-Free Shellcode - Functional Keylogger to File - 601 0x0259 bytes. Shellcode exploit for windows platform / ; Exploit Title: All windows null free shellcode - functional keylogger to file - 601 0x0259 bytes ; Date: Sat May 7 19:32:08 GMT 2016 ; Exploit Author: Fugu ; Vendor...

ROPInjector - Convert any Shellcode in ROP and patch it into a given Portable Executable (PE)

A tool written in C Win32 to convert any shellcode in ROP and patch it into a given portable executable PE. It supports only 32-bit target PEs and the x86 instruction set. Published in Blackhat USA 2015, "ROPInjector: Using Return Oriented Programming for Polymorphism and Antivirus Evasion" More...

Comodo Antivirus - Integer Overflow Leading to Heap Overflow in Win32 Emulation

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=738 A major component of Comodo Antivirus is the x86 emulator, which includes a number of shims for win32 API routines so that common API calls work in emulated programs CreateFile...

Comodo - Integer Overflow Leading to Heap Overflow in Win32 Emulation

Comodo - Integer Overflow Leading to Heap Overflow in Win32 Emulation Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=738 A major component of Comodo Antivirus is the x86 emulator, which includes a number of shims for win32 API routines so that common API calls work in emulated...

Comodo AntiVirus - Forwards Emulated API Calls to the Real API During Scans

Exploit for windows platform in category remote exploits Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=769 Comodo Antivirus includes a x86 emulator that is used to unpack and monitor obfuscated executables, this is common practice among antivirus products. The idea is that...

The Definitive Guide on Win32 to NT Path Conversion

Posted by James Forshaw, path’ological reverse engineer. How the Win32 APIs process file paths on Windows NT is a tale filled with backwards compatibility hacks, weird behaviour, and beauty†. Incorrect handling of Win32 paths can lead to security vulnerabilities. This blog post is to try and give...

[SECURITY] Fedora 23 Update: libsndfile-1.0.25-18.fc23

libsndfile is a C library for reading and writing sound files such as AIFF, AU, WAV, and others through one standard interface. It can currently read/write 8, 16, 24 and 32-bit PCM files as well as 32 and 64-bit floating point WAV files and a number of compressed formats. It compiles and runs on...

[SECURITY] Fedora 22 Update: libsndfile-1.0.25-17.fc22

libsndfile is a C library for reading and writing sound files such as AIFF, AU, WAV, and others through one standard interface. It can currently read/write 8, 16, 24 and 32-bit PCM files as well as 32 and 64-bit floating point WAV files and a number of compressed formats. It compiles and runs on...

[SECURITY] Fedora 23 Update: libsndfile-1.0.25-17.fc23

libsndfile is a C library for reading and writing sound files such as AIFF, AU, WAV, and others through one standard interface. It can currently read/write 8, 16, 24 and 32-bit PCM files as well as 32 and 64-bit floating point WAV files and a number of compressed formats. It compiles and runs on...

CVE-2007-3806

The glob function in PHP 5.2.3 allows context-dependent attackers to cause a denial of service and possibly execute arbitrary code via an invalid value of the flags parameter, probably related to memory corruption or an invalid read on win32 platforms, and possibly related to lack of initializati...