Jailbreak Me 13.37

A webbased jailbreak solution unifying existing jailbreak me solutions and new ones.

Created by Sem Voigtländer

Please read RULES.md as well

Support

• 8.4.1 & 9.3 up to 9.3.3 & 11.3.1 (64-bit)
• 3.1.2 up to 4.0.1 & 8.4.1 and 9.1 up to 9.3.4 (32-bit)

Read more: https://github.com/MTJailed/jailbreakme/blob/master/SUPPORT.md

How it works

Using ModularJS various modules are loaded at runtime.

These modules can be divided into the following stages:

1. Identification

• Uses an information leakage (not vulnerability) in WebGL to detect the GPU of the victim device
• Uses the browser agent to define what browser and firmware to exploit
• Uses size and resolution constraints to detect the specific victim device
• Uses various debugging information about the hardware environment using window.performance or window.navigator
• Uses benchmarking algorithms and hashing to identify and track the victim device.

2. Eligibility

• Using the identification information the victim is checked against various constraints, such as whether the victim is a mobile device or a desktop.

3. Strategy selection

• Based on the eligibility constraints and identity the exploit strategy will be selected for the victim device and loaded.

4. Payload retrieval

• The strategy will load the payload(s) for the victim device, on iOS this can be for example Cydia, on desktops for example a remote administration tool.
• The payload is aligned so it can be used later when the exploit has created an executable region.

5. Exploitation

• The exploit is started and carefully sets up read/write primitives in the browser memory.
• Once r/w is gained an executable region is created and the payload is aligned / copied into it.
• The exploit jumps to the shellcode and starts executing it

6. Post-Exploitation

• Various tools and capabilities could be setup after successful completion of the exploit, such as a telnet client to gain a shell on the victim from the browser.

Credits

• 5aelo
• Niklas B
• Tihmstar
• Luca Todesco
• KJC Research
• Comex
• PanguTeam
• Ian Beer
• Argp
• Evad3rs
• Jonathan Levin (For the jailbreak toolkit)
• Lokihardt (For being able to pwn browsers within a wink)
• Sem Voigtländer (just a techie)
• (@wwwtyro) https://github.com/wwwtyro/cryptico