1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#include <mach/mach.h>
#include <sys/mman.h>
#include <pthread.h>
#include <stdio.h>
#include <dlfcn.h>
void lol(void) {
puts("hello?");
// *(uint32_t*)0x41424344 = 0;
}
void* lol2(void* arg) {
while (1) ;;
}
int main(int argc, char* argv[]) {
kern_return_t kr;
thread_t th;
mach_port_name_t mytask, mythread;
printf("Hello, world!\n");
mytask = mach_task_self();
mythread = mach_thread_self();
mmap(0x2000000, 0x100000, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, 0, 0);
char* test = malloc(0x100);
strcpy(test, "Hello, world! %x %x %x %x %x %x %x\n");
pthread_t thread;
pthread_create(&thread, NULL, lol2, NULL);
puts("test");
// thread_create(mytask, &th);
th = pthread_mach_thread_np(thread);
printf("%x\n", mytask);
arm_thread_state_t state;
mach_msg_type_number_t count;
kr = thread_get_state(mythread, ARM_THREAD_STATE, (thread_state_t)&state, &count);
uint32_t* stack_above = 0x2001000;
stack_above[0] = 0x42069;
stack_above[1] = 0x69420;
stack_above[3] = 0x13371337;
stack_above[4] = 0x6969;
// fprintf(stderr, "%p %p\n", test, dlsym(RTLD_DEFAULT, "puts"));
// exit(42);
// *(uint32_t*)0x41414141 = 0;
// memset(&state, 0, ARM_THREAD_STATE_COUNT * sizeof(uint32_t));
for (int i = 0; i < 13; i++) {
fprintf(stderr, "r%d=%x\n", i, state.__r[i]);
}
*(uint32_t*)(0x346afc48 + 0x1b4c000) = 0x23d751fc + 0x1b4c000;
state.__r[0] = test;
state.__r[1] = 0x1337;
state.__r[2] = 0x420;
state.__r[3] = 0x69;
state.__sp = (uint32_t)stack_above;
state.__lr = 0x23d751fc + 0x1b4c000;
state.__pc = ((uint32_t)dlsym(RTLD_DEFAULT, "printf")) | 1;
state.__cpsr = 0x40000020;
kr = thread_set_state(th, ARM_THREAD_STATE, (thread_state_t)&state, ARM_THREAD_STATE_COUNT);
kr = thread_resume(th);
// thread_call_enter((thread_call_func_t)&lol);
sleep(1);
return 0;
}
|
