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AT+XAPP Vulnerability
Used as an injection vector for the current iPhone 3G and iPhone 3GS unlock payloads - ultrasn0w 0.93. Currently available in all baseband versions until 05.13.04.
Credit
- vulnerability: sherif_hashim, also discovered by westbaer, geohot and Oranav (each one independently), also by Leobruh
- exploitation: iPhone Dev Team
Exploit
There is a stack overflow in the AT+XAPP="..." command, which allows unsigned code execution on the X-Gold 608
at+xapp="0000111122223333444455556666777788889999000011112222"
applying a string of more than 52 characters will trigger the overflow
Implementation
The exploit was used by iPhone Dev Team in Ultrasn0w 0.93 which is able to unlock 4.26.08, 5.11.07, 5.12.01 and 5.13.04 BB firmwares
