Google Discloses Severe Bug in Libgcrypt Encryption Library—Impacting Many Projects

A "severe" vulnerability in GNU Privacy Guard GnuPG's Libgcrypt encryption software could have allowed an attacker to write arbitrary data to the target machine, potentially leading to remote code execution. The flaw, which affects version 1.9.0 of libgcrypt, was discovered on January 28 by Tavis...

CSSG - Cobalt Strike Shellcode Generator

Adds Shellcode - Shellcode Generator to the Cobalt Strike top menu bar CSSG is an aggressor and python script used to more easily generate and format beacon shellcode Generates beacon stageless shellcode with exposed exit method, additional formatting, encryption, encoding, compression, multiline...

Shellex - C-shellcode To Hex Converter, Handy Tool For Paste And Execute Shellcodes In Gdb, Windbg, Radare2, Ollydbg, X64Dbg, Immunity Debugger And 010 Editor

C-shellcode to hex converter. Handy tool for paste & execute shellcodes in gdb, windbg, radare2, ollydbg, x64dbg, immunity debugger & 010 editor. Are you having problems converting C-shellcodes to HEX maybe c-comments+ASCII mixed? Here is shellex. If the shellcode can be compiled in a C compiler...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft

This is a proof-of-concept PoC exploit for CVE-2020-0796, also known as SMBGhost, a pre-authentication remote code execution vulnerability in Windows SMBv3. The exploit is written in Python and uses the SMB protocol to inject shellcode into the Windows kernel. The shellcode is generated from a...

Linux/x64 - Bind_tcp (0.0.0.0:4444) + Password (12345678) + Shell (/bin/sh) Shellcode (142 bytes)

/ Exploit Title: Linux/x64 - Bindtcp 0.0.0.0:4444 + Password 12345678 + Shell /bin/sh Shellcode 142 bytes Author: Guillem Alminyana Platform: GNU Linux x64 ===================================== Compile: gcc -fno-stack-protector -z execstack shellcode.c -o shellcode / include include unsigned char...

Windows/x86 - Stager Generic MSHTA Shellcode (143 bytes)

Exploit Title: Windows/x86 - Stager Generic MSHTA Shellcode 143 bytes Exploit Author: Armando Huesca Prida Date: 11-01-2021 Tested on: Windows 7 Professional 6.1.7601 SP1 Build 7601 x86 Windows Vista Ultimate 6.0.6002 SP2 Build 6002 x86 Windows Server 2003 Enterprise Edition 5.2.3790 SP1 Build 37...

CTF-All-In-One

This is a comprehensive book on CTF Capture The Flag competitions, specifically focusing on the Pwn binary exploitation aspect. The book is written by Yang Chaofei, a member of L-Team, and is intended for beginners. It covers the basics of binary exploitation, including memory management, buffer...

Backdoor.Win32.Xel Remote Authentication Buffer Overflow

Discovery / credits: Malvuln - malvuln.com c 2021 Original source: https://malvuln.com/advisory/3648c68bfe395fb9980ae547d881572c.txt Contact: [email protected] Media: twitter.com/malvuln Threat: Backdoor.Win32.Xel Vulnerability: Remote Authentication Buffer Overflow Description: Xel listens on...

Linux/x64 - Reverse (127.1.1.1:4444) Shell (/bin/sh) Shellcode (123 Bytes)

/ Exploit Title: Linux/x64 - Reverse Shell Author: Guillem Alminyana Date: 2021-01-18 Platform: GNU Linux x64 ===================================== This shellcode connects back to 127.1.1.1 address on port 4444 Listener needs to be opened before execute: nc -lvp 4444 Compile: gcc...

Linux/x86 - Socat Bind Shellcode (113 bytes)

/ Exploit Title: Linux/x86 - Socat Bind Shellcode 113 bytes Author: Felipe Winsnes Tested on: Debian x86 Shellcode Length: 113 global start section .text start: xor eax, eax push eax PUSH 0x30303030 ; "tcp-listen:10000" PUSH 0x313a6e65 PUSH 0x7473696c PUSH 0x2d706374 mov esi, esp push eax PUSH...

Researchers Disclose Undocumented Chinese Malware Used in Recent Attacks

Cybersecurity researchers have disclosed a series of attacks by a threat actor of Chinese origin that has targeted organizations in Russia and Hong Kong with malware — including a previously undocumented backdoor. Attributing the campaign to Winnti or APT41, Positive Technologies dated the first...

K55 - Linux X86_64 Process Injection Utility | Manipulate Processes With Customized Payloads

pronounced: "kay fifty-five" The K55 payload injection tool is used for injecting x8664 shellcode payloads into running processes. The utility was developed using modern C++11 techniques as well as some traditional C linux functions like ptrace. The shellcode spawned in the target process is 27...

Linux/x86 - bind shell on port 13377 Shellcode (65 bytes)

Exploit Title: Linux/x86 - bind shell on port 13377 Shellcode 65 bytes Date: Jan 12, 2021 Exploit Author: ac3 Version: Linux x86 Tested on: Linux x86 linux x86 nc -lvve/bin/sh -p13377 shellcode This shellcode will listen on port 13377 using netcat and give /bin/sh to connecting attacker 31 c0 xor...

CVE-2020-35608

A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.07. A specially crafted AFPACKET socket can cause a process to create an executable memory mapping with controllable content. An attacker can execute a shellcode that uses...

CVE-2020-35609

A denial-of-service vulnerability exists in the asynchronous ioctl functionality of Microsoft Azure Sphere 20.05. A sequence of specially crafted ioctl calls can cause a denial of service. An attacker can write shellcode to trigger this vulnerability...

CVE-2020-35609

A denial-of-service vulnerability exists in the asynchronous ioctl functionality of Microsoft Azure Sphere 20.05. A sequence of specially crafted ioctl calls can cause a denial of service. An attacker can write shellcode to trigger this vulnerability...

CVE-2020-35608

A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.07. A specially crafted AFPACKET socket can cause a process to create an executable memory mapping with controllable content. An attacker can execute a shellcode that uses...

Denial of service

A denial-of-service vulnerability exists in the asynchronous ioctl functionality of Microsoft Azure Sphere 20.05. A sequence of specially crafted ioctl calls can cause a denial of service. An attacker can write shellcode to trigger this vulnerability...

CVE-2020-35609

A denial-of-service vulnerability exists in the asynchronous ioctl functionality of Microsoft Azure Sphere 20.05. A sequence of specially crafted ioctl calls can cause a denial of service. An attacker can write shellcode to trigger this vulnerability...

CVE-2020-35608

A code execution vulnerability exists in the normal world’s signed code execution functionality of Microsoft Azure Sphere 20.07. A specially crafted AFPACKET socket can cause a process to create an executable memory mapping with controllable content. An attacker can execute a shellcode that uses...