Comments (9)
rhelmot
commented on August 28, 2024
1
Ah, shit. I'm sorry, I got this example mixed up with a different one in my head.
Can you try it with these libraries? libs.tar.gz I suspect the libraries on your OS are tripping up the emulation somehow.
from angr-doc.
rhelmot
commented on August 28, 2024
The script only works while emulating the version of libc present in the repository.
from angr-doc.
cformosa1
commented on August 28, 2024
Ah I wasn't aware of that. Thanks for the tip. So if I'm understanding correctly since I'm on windows os, I won't be able to emulate the version of libc in my windows environment and therefore this example won't work unless I run it in a *nix env or on the docker container provided?
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fwx2233
commented on August 28, 2024
您好，已经收到您的邮件，非常感谢
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rhelmot
commented on August 28, 2024
No, all you need to do is download the version of libc that lives next to the engine binary in the repository and put it in the same folder as your engine binary. angr will pick it up and emulate it.
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cformosa1
commented on August 28, 2024
Ok, I think I'm starting to understand now. Follow up: When you say 'the version of libc that lives next to the engine binary in the repository', where is that location you are referring to? I don't see it anywhere in the angr repo on github and when I run it through the docker container, the only libc files are I see are in /lib/x86_64-linux-gnu/. Is this where the libc files I need to download are or is there another location I'm missing?
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rhelmot
commented on August 28, 2024
The place you downloaded the engine binary from, the angr-doc repository
On Wed, Dec 8, 2021 at 6:26 PM cformosa1 ***@***.***> wrote:
Ok, I think I'm starting to understand now. Follow up: When you say 'the
version of libc that lives next to the engine binary in the repository',
where is that location you are referring to? I don't see it anywhere in the
angr repo on github and when I run it through the docker container, the
only libc files are I see are in /lib/x86_64-linux-gnu/. Is this where the
libc files I need to download are or is there another location I'm missing?
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cformosa1
commented on August 28, 2024
Sorry to keep asking questions. I feel like my questions aren't very intelligent but I can't seem to figure out what I'm doing wrong. I downloaded the binary from angr-doc/examples/b01lersctf2020_little_engine/. In there, I see two files:
solve.py
engine
There is no libc file to download here. I've checked the entire angr-doc repo but I don't see any libc files to be downloaded in it. What am I misunderstanding and where do I find "the version of libc that lives next to the engine binary" since I don't seem to see any libc that is in this directory?
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cformosa1
commented on August 28, 2024
With these, I was able to properly run it on my OS. Thank you so much for your all your time and help! Really appreciate it!
from angr-doc.
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