Doubts with trace_reader vine

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gogineni kailashnath

Apr 19, 2021, 12:09:09 PM4/19/21
to BitBlaze User Discussion group
We are trying to use openSSL with TEMU for performing tainting (whole packet and file level tainting also works - reference paper - When we finish the tainting we get the results such as WhatsApp Image 2021-04-18 at 12.23.45 PM.jpeg
Then we used, vine to get the binary to get the human readable format. But our aim is to take a basic block from the file generated by trace_reader and map it to the address of the dump of openssl binary. But the problem we faced is, the instruction address of trace_reader generated binary and normal openssl dump binary are not matching. So, can anyone help to solve this problem? (the trace_reader generated binary has some instructions starting with b7xxxxx, but in our openssl binary all the instruction addresses start from 8xxxx)
Openssl binary example:
tainted binary:
image (1).png

Heng Yin

Apr 19, 2021, 3:23:51 PM4/19/21
this is just a simple question about rebasing. During execution, your openssl is loaded into a region starting at b7. In disassemblers like IDA or Ghidra, you can rebase the openssl binary to be consistent with the base address during execution.


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