angrop fails as `xor` argument get lost in space

tux-mind commented 6 years ago

Symptoms

I cannot run angrop on garbagetruck plaidctf chall due to an angr bug.

Cause

It seems that Angr (it's vex engine ) cannot handle a Left Shift as 2nd operand of the xor ( or that operation shall be first moved to another reg ).

Versions:

Angrop from sources, commit ce5d98b8f2f521a8e49e57f15f0ca4543c69c810 angr-7.7.12.16 from pip

Binary:

http://ropshell.com/ropsearch?h=67352acee5f5e8770121b9ea717b1c1a

Script:

import angr, angrop

p = angr.Project("garbagetruck")
rop = p.analyses.ROP()
rop.find_gadgets()

# ... never reached

Debugging info:

https://pastebin.com/TbZBPpu7

rhelmot commented 6 years ago

I couldn't reproduce this. find_gadgets() finished successfully for me.

github-actions[bot] commented 2 years ago

This issue has been marked as stale because it has no recent activity. Please comment or add the pinned tag to prevent this issue from being closed.

github-actions[bot] commented 2 years ago

This issue has been closed due to inactivity.

angr / angrop