TCP Bindshell with Password Prompt - 162 bytes

TCP Bindshell with Password Prompt - 162 bytes. Shellcode exploit for linux platform /--------------------------------------------------------------------------------------------------------------------- / Title: tcp bindshell with password prompt in 162 bytes Author: Sathish kumar Contact:...

Linux/x86-64 - Bind TCP Port Shellcode (103 bytes)

/--------------------------------------------------------------------------------------------------------------------- / Author: Scorpion Copyright: c 2016 iQube. http://iQube.io Release Date: January 1, 2016 Description: x64 Linux null-free TCP bind port shellcode Assembled Size: 103 bytes Teste...

Linux x86_64 Polymorphic execve Shellcode - 31 bytes

Linux x8664 Polymorphic execve Shellcode - 31 bytes. Shellcode exploit for linx86-64 platform / ;Title: polymorphic execve shellcode ;Author: d4sh&r ;Contact: https://mx.linkedin.com/in/d4v1dvc ;Category: Shellcode ;Architecture:linux x8664 ;SLAE64-1379 ;Description: ;Polymorphic shellcode in 31...

Win2003 x64 - Token Stealing shellcode - 59 bytes

Win2003 x64 - Token Stealing shellcode - 59 bytes. Shellcode exploit for win64 platform ;token stealing shellcode Win 2003 x64 ;based on the widely available x86 version ;syntax for NASM ;Author: Csaba Fitzl, @theevilbit ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;important structures and offsets;...

linux/x86 /bin/sh ROL/ROR Encoded Shellcode

Custom shellcode encoder/decoder that switches between byte ROR and byte ROL 1. Update eRORoROL-encoder.py with your shellcode 2. Run eRORoROL-encoder.py 3. Copy output from eRORoROL-encoder.py and update eRORoROL-decoder.nasm 4. Run eRORoROLcompile.sh -----eRORoROL-encoder.py BEGIN CODE-----...

Linux x86 - /bin/sh ROL/ROR Encoded Shellcode

Linux x86 - /bin/sh ROL/ROR Encoded Shellcode. Shellcode exploit for linx86 platform Custom shellcode encoder/decoder that switches between byte ROR and byte ROL 1. Update eRORoROL-encoder.py with your shellcode 2. Run eRORoROL-encoder.py 3. Copy output from eRORoROL-encoder.py and update...

linux/x86 /bin/sh ROT7 Encoded Shellcode

Shellcode Title: ROT7 Date: 5 July 2015 Exploit Author: Artem Tsvetkov Software Link: https://github.com/adeptex/SLAE/tree/master/Assignment-6/rot7 Tested on: Kali GNU/Linux 1.1.0 Platform: x86 Linux This code was created as an exercise for the SecurityTube Linux Assembly Expert SLAE. The followi...

Linux x86 /bin/sh ROT7 Encoded Shellcode

Linux x86 /bin/sh ROT7 Encoded Shellcode. Shellcode exploit for linx86 platform Shellcode Title: ROT7 Date: 5 July 2015 Exploit Author: Artem Tsvetkov Software Link: https://github.com/adeptex/SLAE/tree/master/Assignment-6/rot7 Tested on: Kali GNU/Linux 1.1.0 Platform: x86 Linux This code was...

Vulnerabilities in the Debian GNU/Linux operating system that allow a remote attacker to compromise the confidentiality, integrity, and accessibility of protected information

The multiple vulnerabilities in the nasm package of the Debian GNU/Linux operating system may lead to breaches of the confidentiality, integrity, and accessibility of protected information. These vulnerabilities can be exploited remotely...

NASM 0.98.x Error Preprocessor Directive Buffer Overflow Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/11991/info NASM is prone to a buffer overflow. This condition is exposed when the application attempts to assemble a source file that contains malformed '%error' preprocessor directive arguments. Since the source file may...

NASM 2.0 - 'ppscan()' Off-By-One Buffer Overflow Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/29656/info NASM is prone to an off-by-one buffer-overflow vulnerability because the application fails to perform adequate boundary checks on user-supplied data. Successfully exploiting this issue will allow attackers to...

linux x86 nc -lvve/bin/sh -p13377 shellcode

No description provided by source. linux x86 nc -lvve/bin/sh -p13377 shellcode This shellcode will listen on port 13377 using netcat and give /bin/sh to connecting attacker Author: Anonymous Site: http://chaossecurity.wordpress.com/ Here is code written in NASM ///////////////////////////// secti...

Simple 8-bit Assembler Simulator

A simulator which provides a simplified assembler syntax based on NASM and is simulating a x86 like cpu. Press Help inside the simulator to see an overview about the supported instructions. Features 8-bit CPU 4 general purpose registers 256 bytes of memory Console output Simple 8-bit Assembler...

linux/x86-64 connect-back shell with netcat 109 bytes

Title : Shellcode linux/x86-64 connect-back shell with netcat Author : Gaussillusion Len : 109 byte In the file there is the shellcode in asm and the bytecode. Gaussillusion. ; Title: Shellcode linux/x86-64 connect back shell ; Author : Gaussillusion ; Len : 109 byte ; Language : Nasm ;syscall:...

linux/x86 - nc -lvve/bin/sh -p13377 - 62 bytes

linux x86 nc -lvve/bin/sh -p13377 shellcode This shellcode will listen on port 13377 using netcat and give /bin/sh to connecting attacker Author: Anonymous Site: http://chaossecurity.wordpress.com/ Here is code written in NASM ///////////////////////////// section .text global start start: xor...

Design/Logic Flaw

The emsyscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 aka syscall opcode, which allows guest OS users to cause a denial of service guest OS crash via a crafted application, as demonstrated by an NASM file...

CVE-2012-0045

CVE-2012-0045 relates to the Linux kernel KVM 32-bit syscall emulation. A flaw in arch/x86/kvm/emulate.c where the 0f05 (syscall) opcode is not handled correctly allows a user in a 32-bit guest to crash the guest OS (denial of service). Public references in the provided connected documents confir...

CVE-2012-0045

The emsyscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 aka syscall opcode, which allows guest OS users to cause a denial of service guest OS crash via a crafted application, as demonstrated by an NASM file...

Основы написания Win-шеллкода

В этой статье речь пойдет о написании простого шеллкода под Windows платформу. Статья является начальным этапом цикла статей, которые я, опираясь на материалы и труды зарубежных специалистов в данной области, планирую написать. Эта статья не насыщена всеобъемлющей информацией, однако её цель -...

MDVA-2009:065 : nasm

Nasm would crash under certain conditions. This update replaces the patch that introduced the crash. %NASLMINLEVEL 70300 @DEPRECATED@ This script has been deprecated as the associated patch is not currently a security fix. Disabled on 2012/09/06. C Tenable Network Security, Inc. This script was...