Questions tagged [angr]
angr is a Python binary analysis framework developed by the Computer Security Lab at UC Santa Barbara and their associated CTF team, Shellphish. project URL: https://github.com/angr/angr
1
vote
1answer
72 views
Angr never finishes
I create the following c program as a proof of concept. When I try to analyze it with anger it never finishes.
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
char *...
4
votes
0answers
67 views
How do I perform concolic execution with Angr and collect constraints on input?
I have a program that takes a string (with some structure) as input. My aim is to collect information on what values each character in input is compared to as it gets parsed using concolic execution. ...
2
votes
1answer
47 views
angr multiple reads same variable
I'm writing a script to solve a binary that asks for multiple strings like the following c code,
My problem I can't dump the 'second_pass, I just get "first_pass".
probably due of the use of the same ...
1
vote
1answer
122 views
problem with scanf/fgets in angr stdin exploration
I want to solve this very basic crackme using angr:
#include <stdio.h>
#include <string.h>
int main(int argc, char *argv[]) {
char buffer[64];
printf("Mot de passe:\n");
...
0
votes
0answers
48 views
debugger trap with angr
Let's suppose this (very ugly) c code:
#include <stdio.h>
#include <string.h>
#include <signal.h>
char sav_argv[100];
void on_sigtrap(int signo)
{
if (strcmp(sav_argv, "hello")...
0
votes
0answers
38 views
Hooking with angr
I have created and compiled a very basic c program which displays a message with printf. I have compiled a 64 bits PIE elf binary.
I want to learn how works angr analysis tool.
I have written this ...
3
votes
2answers
497 views
Password Bruteforce using angr
I am having a binary which takes an input from user and checks every bit of our character using the check_value function which does some stuff. The disassembly of the interested function is:
.text:...
5
votes
1answer
258 views
How can I get the shared libraries' function calls using angr
I am trying to get all the library function calls that a binary performs in a preorder-DFT traversal of the CFG. I'm able to get the CFG like:
import sys, angr
import networkx as nx
proj = angr....
