DhavalKapil

ELF

ELF Header

The first portion of any ELF file is the ELF header. This generally provides offsets to other headers (program headers and section headers) within an ELF.

typedef struct {
  unsigned char e_ident[EI_NIDENT];
 uint16_t e_type;

Wack0

<?php
/*
	Updated version, 2016-12-02: fixed shellcode so it *actually* works on QEMU
	usermode emulation (seems I pushed an old version), and removed debug output.
	
	-------------------------
	
	NB: THIS PoC ONLY WORKS IN QEMU USERMODE EMULATION!
	If anyone wants to fix this, go ahead (no pun intended).
	However, I don't have a vulnerable product and am unwilling to acquire one.

ipbastola

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 

rwohleb

# Fail2Ban action for reporting to badips.com
#
# Author: Robert Wohleb
#

[Definition]

# Option:  actionstart
# Notes.:  command executed once at the start of Fail2Ban.
# Values:  CMD

mkfmnn

local ffi = require("ffi")
ffi.cdef[[
  typedef void (*cb)(void);
  void call(int n, void (*)(void));
  void loop(int n);
  void func(void);
]]
local callback = ffi.load("./callback.so")
local timeit = require("timeit")