disconnect3d

%%cython

# Minkowski Distance with p=0.5
# based on scikit-learn MinkowskiDistance cython's class
# https://github.com/scikit-learn/scikit-learn/blob/cbd3bca20f1d19461011b5f59d9416669eb30535/sklearn/neighbors/dist_metrics.pyx#L524


from libc.math cimport fabs, sqrt, pow
cimport numpy as np

disconnect3d

HIDDENSC:
02:00 <@crowell> disconnect3d: it's from the poking holes in information hiding paper
 https://www.usenix.org/conference/usenixsecurity16/technical-sessions/presentation/oikonomopoulos
POC: 02:11:16 <yrp> tezeb: https://gist.github.com/yrp604/82e4f1cb8ed553c7a995237062177a6c

MINESWEEPER:
02:00 <yyyyyyy> minesweeper writeup: https://hxp.io/blog/30

RSA:
02:00 <@gsilvis> RSA: 1 has a small factor [use pollard's rho]; 2 has a factor p where p-1 is smooth [use pollard's p-1]; 3 was GCD; 4 was Weiner's attack; 5 was Fermat's factorization algorithm

disconnect3d

"""
Solution from Disconnect3d [playing in Just Hit the Core]
"""

import os
import angr
import pwn
import subprocess

disconnect3d

In [8]: import ctypes
   ...: 
   ...: 
   ...: class Foo(ctypes.LittleEndianStructure):
   ...:     _fields_ = (('bar', ctypes.c_uint64),)
   ...: 
   ...:     def __str__(self):
   ...:         return 'Foo .bar={}'.format(self.bar)
   ...: 
   ...:     @classmethod

disconnect3d

import angr

# Just compile the modified code: `gcc modified.c`
# and run `python crack.py` (you need angr installed)

# NOTE: You can find WIN_ADDR with `objdump -Mintel -d a.out  | grep 1337`
WIN_ADDR = 0x40063e

p = angr.Project('./a.out')
pg = p.factory.path_group()

disconnect3d

#!/usr/bin/env python

import numpy as np
from types import FunctionType, MethodType, BuiltinFunctionType

n = np.array("ABC")
attr_names = dir(n)

for attr in attr_names:
    val = getattr(n, attr)

disconnect3d

import functools
import inspect


class Bar:
    def changelist_view(self, request, extra_content):
        print("Bar.changelist_view(request={}, extra_content={})".format(request, extra_content))

    def change_view(self, request, object_id, form_url, extra_content):
        print("Bar.change_view(request={}, object_id={}, form_url={}, extra_content={})"

disconnect3d

#!/usr/bin/env python3

NODE_START = 4
NODE_WIDTH = 6

NODE_START_X = 1  # left of node
NODE_START_Y = 1  # bottom of node
NODE_SHORT_HEIGHT = 1
NODE_LONG_HEIGHT = 1.5

disconnect3d

@pytest.fixture
def mock_time_in_ms(monkeypatch):
    def _mock_time_in_ms(values_to_return):
        idx = [0]

        def _time():
            v = values_to_return[idx[0]]
            idx[0] += 1
            return v

disconnect3d

#include <stdio.h>
#include <semaphore.h>
#include <unistd.h>
#include <fcntl.h>

#define INFOFUNC printf("[%d] %s\n", getpid(), __FUNCTION__)
#define INFO(m) printf("[%d] %s\n", getpid(), m)

sem_t* parent_sem;
sem_t* sem;