Linux - Use-After-Free Reads in show_numa_stats()

/ On NUMA systems, the Linux fair scheduler tracks information related to NUMA faults in taskstruct::numafaults and taskstruct::numagroup. Both of these have broken object lifetimes. Since commit 82727018b0d3 "sched/numa: Call tasknumafree from doexecve", first in v3.13, -numafaults is freed not...

Arbitrary Command Execution

zsh is vulnerable to arbitrary command execution. The truncation of Shebang lines that exceed 64 characters could potentially lead to arbitrary execve call...

Linux/x86 - Force Reboot Shellcode (51 bytes)

---------------------- DESCRIPTION ------------------------------------- ; Title: NOT encoded Linux/x86 Force Reboot shellcode for Linux/x86 - Polymorphic ; Author: Daniel Ortiz ; Tested on: Linux 4.18.0-25-generic 26 Ubuntu ; Size: 51 bytes ; SLAE ID: PA-9844 ---------------------- ASM CODE...

Linux/x86 - NOT +SHIFT-N+ XOR-N Encoded /bin/sh Shellcode (168 bytes)

/ description ; Title : X64 NOT +SHIFT-N+ XOR-N encoded /bin/sh - shellcode ; Author : Pedro Cabral ; Twitter : @CabrallPedro ; LinkedIn : https://www.linkedin.com/in/pedro-cabral1992 ; SLAE ID : SLAE64 - 1603 ; Purpose : spawn /bin/sh shell ; Tested On : Ubuntu 16.04.6 LTS ; Arch : x64 ; Size :...

DEBIAN-CVE-2019-13272

In the Linux kernel before 5.1.17, ptracelink in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a...

CVE-2019-13272

In the Linux kernel before 5.1.17, ptracelink in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a...

CVE-2019-13272

In the Linux kernel before 5.1.17, ptracelink in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a...

CVE-2019-13272

In the Linux kernel before 5.1.17, ptracelink in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a...

CVE-2019-13272

In the Linux kernel before 5.1.17, ptracelink in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a...

UBUNTU-CVE-2019-13272

In the Linux kernel before 5.1.17, ptracelink in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a...

Linux/ARM64 - mmap() + read() stager + execve("/bin/sh", NULL, NULL) Shellcode (60 Bytes

/ Title: Linux/ARM64 - mmap + read stager + execve"/bin/sh", NULL, NULL Shellcode 60 Bytes Date: 2019-06-30 Tested: Ubuntu 16.04 aarch64 Author: Ken Kitahara Compilation: gcc -o loader loader.c ubuntu@ubuntu:/works$ lsbrelease -a No LSB modules are available. Distributor ID: Ubuntu Description:...

Linux/x86 - execve(/bin/sh) using JMP-CALL-POP Shellcode (21 bytes)

/ ;Category: Shellcode ;Title: GNU/Linux x86 - execve /bin/sh using JMP-CALL-POP technique 21 bytes ;Author: kiriknik ;Date: 01/07/2019 ;Architecture: Linux x86 =========== Asm Source =========== global start section .text start: jmp short callshellcode shellcode: pop ebx xor eax,eax mov al, 11 i...

Linux/ARM64 - execve(/bin/sh, [/bin/sh], NULL) Shellcode (48 Bytes)

/ Title: Linux/ARM64 - execve"/bin/sh", "/bin/sh", NULL Shellcode 48 Bytes Date: 2019-06-30 Tested: Ubuntu 16.04 aarch64 Author: Ken Kitahara Compilation: gcc -o loader loader.c ubuntu@ubuntu:/works$ lsbrelease -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Xenial Xer...

Linux/ARM64 - Jump Back Shellcode + execve(/bin/sh, NULL, NULL) Shellcode (8 Bytes)

/ Title: Linux/ARM64 - Jump Back Shellcode + execve"/bin/sh", NULL, NULL Shellcode 8 Bytes Date: 2019-06-30 Tested: Ubuntu 16.04 aarch64 Author: Ken Kitahara Compilation: gcc -o loader loader.c ubuntu@ubuntu:/works$ lsbrelease -a No LSB modules are available. Distributor ID: Ubuntu Description:...

Linux/x86_64 - Reverse(0.0.0.0:4444/TCP) Shell (/bin/sh) Shellcode (70 bytes)

/ Title: Linux/x8664 - Reverse0.0.0.0:4444/TCPShell/bin/sh- Null Free Shellcode ;Author: Aron Mihaljevic ;Architecture: Linux x8664 ;Shellcode Length: 70 bytes ;github = https://github.com/STARRBOY compilation and execution of assembly code ------------------------------------- nasm -felf64...

TP-Link Wi-Fi extender remote code execution vulnerability analysis-vulnerability warning-the black bar safety net

WiFi extender can enlarge the WiFi signal, mainly used for large or multi-storey residential, and the router signal can not cover the family's case. The extender's principle is from the main router to get a WiFi signal, and broadcast channel other WiFi signal weak or no signal area. IBM X-Force...

Linux/x86 - Reposition + INC encoder with execve(/bin/sh) Shellcode (66 bytes)

Title: Linux/x86 - Reposition + INC encoder with execve/bin/sh Shellcode 66 bytes Author: Jonathan So Purpose: decode and spawn a /bin/sh shell Tested On: Linux kali 4.19.0-kali4-686 1 SMP Debian 4.19.28-2kali1 2019-03-18 i686 GNU/Linux Arch: x86 Size: 66 bytes Write-up Link:...

Linux/x64 - Execve(/bin/sh) Shellcode (23 bytes)

/ ;Category: Shellcode ;Title: GNU/Linux x8664 - execve /bin/sh ;Author: rajvardhan ;Architecture: Linux x8664 ;Possibly The Smallest And Fully Reliable Shellcode =========== Asm Source =========== global start section .text start: xor rsi,rsi push rsi mov rdi,0x68732f2f6e69622f push rdi push rsp...

Linux/x86 - execve /bin/sh Shellcode (20 bytes)

/ Linux/x86 - execve /bin/sh shellcode 20 bytes Author: Rajvardhan Tested on: i686 GNU/Linux Shellcode Length: 20 Disassembly of section .text: 08049000 : 8049000: 31 c9 xor %ecx,%ecx 8049002: 6a 0b push $0xb 8049004: 58 pop %eax 8049005: 51 push %ecx 8049006: 68 2f 2f 73 68 push $0x68732f2f...

Linux/x86 - Multiple keys XOR Encoder / Decoder execve(/bin/sh) Shellcode (59 bytes)

Title: Linux/x86 - Multiple keys XOR Encoder / Decoder execve/bin/sh Shellcode 59 bytes Author: Xavi Beltran Date: 05/05/2019 Contact: email protected Purpose: spawn /bin/sh shell Tested On: Ubuntu 3.5.0-17-generic Arch: x86 Size: 59 bytes sh.nasm global start section .text start: xor eax, eax pu...