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| − | This exploit in the [[VROM (S5L8900)|S5L8900 bootrom]] is really the ultimate exploit, since it allows unsigned code to be run at the lowest level. It is available in all devices that use the [[S5L8900]] - the [[ |
+ | This exploit in the [[VROM (S5L8900)|S5L8900 bootrom]] is really the ultimate exploit, since it allows unsigned code to be run at the lowest level. It is available in all devices that use the [[S5L8900]] - the [[M68AP|iPhone]], [[N45AP|iPod Touch]] and [[N82AP|iPhone 3G]]. It is also available on some non-iOS iPods. |
| − | ==Source code== |
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| − | //----- Type defines ---------------------------------------------------------- |
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| − | typedef unsigned char byte; // Byte is a char |
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| − | typedef unsigned short int word16; // 16-bit word is a short int |
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| − | typedef unsigned int word32; // 32-bit word is an int |
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| − | //----- Defines --------------------------------------------------------------- |
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| − | #define POLYNOMIAL 0x04c11db7L // Standard CRC-32 ppolynomial |
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| − | //----- Gloabl variables ------------------------------------------------------ |
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| − | unsigned long crctable[256] = |
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| − | { |
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| − | 0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL, |
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| − | 0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L, |
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| − | 0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L, |
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| − | 0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L, |
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| − | 0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL, |
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| − | 0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L, |
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| − | 0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL, |
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| − | 0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L, |
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| − | 0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L, |
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| − | 0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL, |
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| − | 0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L, |
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| − | 0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L, |
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| − | 0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L, |
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| − | 0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL, |
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| − | 0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L, |
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| − | 0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL, |
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| − | 0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL, |
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| − | 0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L, |
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| − | 0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L, |
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| − | 0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L, |
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| − | 0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL, |
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| − | 0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L, |
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| − | 0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL, |
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| − | 0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L, |
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| − | 0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L, |
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| − | 0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL, |
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| − | 0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L, |
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| − | 0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L, |
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| − | 0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L, |
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| − | 0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL, |
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| − | 0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L, |
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| − | 0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL, |
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| − | 0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL, |
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| − | 0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L, |
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| − | 0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L, |
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| − | 0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L, |
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| − | 0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL, |
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| − | 0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L, |
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| − | 0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL, |
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| − | 0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L, |
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| − | 0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L, |
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| − | 0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL, |
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| − | 0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L, |
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| − | 0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L, |
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| − | 0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L, |
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| − | 0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL, |
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| − | 0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L, |
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| − | 0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL, |
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| − | 0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL, |
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| − | 0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L, |
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| − | 0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L, |
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| − | 0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L, |
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| − | 0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL, |
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| − | 0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L, |
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| − | 0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL, |
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| − | 0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L, |
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| − | 0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L, |
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| − | 0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL, |
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| − | 0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L, |
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| − | 0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L, |
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| − | 0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L, |
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| − | 0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL, |
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| − | 0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L, |
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| − | 0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL |
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| − | }; |
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| − | //----- Prototypes ------------------------------------------------------------ |
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| − | word32 update_crc(word32 crc_accum, byte *data_blk_ptr, word32 data_blk_size); |
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| − | //============================================================================= |
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| − | //= CRC32 generation = |
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| − | //============================================================================= |
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| − | word32 update_crc(word32 crc, byte *data_blk_ptr, word32 data_blk_size) |
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| − | { |
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| − | register word32 i, j; |
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| − | for (j = 0; j < data_blk_size; j++) { |
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| − | crc = crctable[(crc ^ data_blk_ptr[j]) & 0xFFL] ^ (crc >> 8); |
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| − | } |
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| − | return crc; |
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| − | } |
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| − | |||
==Credit== |
==Credit== |
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[[iPhone Dev Team]] |
[[iPhone Dev Team]] |
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Latest revision as of 07:51, 8 October 2015
This exploit in the S5L8900 bootrom is really the ultimate exploit, since it allows unsigned code to be run at the lowest level. It is available in all devices that use the S5L8900 - the iPhone, iPod Touch and iPhone 3G. It is also available on some non-iOS iPods.
Credit
Exploit
There is a stack overflow in the certificate parsing code. By passing a malformed certificate, unsigned code can be run.
