Difference between revisions of "Kernel memory write via ROP gadget"

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== See also ==
 
== See also ==
* [[:Category:Kernel_Patches|Jailbreak Patches]] (like <code>sb_evaluate()</code> and <code>task_for_pid()</code>)
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* [[Kernel Patches]] (like <code>sb_evaluate()</code> and <code>task_for_pid()</code>)
   
 
== References ==
 
== References ==

Latest revision as of 12:41, 18 August 2013

Evasi0n cannot set the destination pointer in a memmove() operation to an arbitrary value because the vtable pointer is necessary to call the wanted function. This problem is solved by searching for a STR R1, [R2]; BX LR gadget in memory and that is being used to write four bytes at a time. With this all patches can be made.

See also

References